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iPhone hot, Battery draining fast, dataaccessd crashing repeatedly

I have been having problems where I find my iPhone battery has drained more quickly than normal, and I find it warmer than normal. Digging into it, I found that 'dataaccessd' and 'ReportCrash' are starting and stopping in the pid list. I am using a $2.99 iTunes Store program called System Activity Monitor to see the pids & CPU load. The CPU load is spiking every few seconds, which I guess correlates with the heat and battery drain.

I followed the recommendation below exactly with this afternoon's episode, and it is still running the processor and burning battery, looping through 'dataacessd' and 'ReportCrash' afterwards.

+Have you tried this simple tip?+

+1) Hit home button twice to bring up active applications+
+2) click and hold down mail until the red minus sign appears+
+3) click on the red minus sign to quit the application+
+4) hit the home screen and re-launch the mail application+

+This has always fixed my mail issues. Note restarting the phone does+
+not help, you need to do the above procedure.+

I also cycled power, and it came back up with dataaccessd still crashing & cycling with repetitive spiking CPU loads. I also turned 'push' off earlier today (Fetch New Data / Push -> Off), apparently with no effect.

I have the EAS profile installed per http://support.apple.com/kb/TS3398 with the DefaultEASTaskTimeout at 240. And it doesn't seem to matter whether the phone is on 3G or WiFi when this condition happens.

As usual, the "fix" was to delete my Exchange e-mail account and re-install it. After that, I don't see 'dataaccessd' and 'REportCrash' coming and going in the pid list. This "fix" works, but going through this procedure 3-4 times per week is getting old, not to mention the unpleasant surprise of finding my battery has unexpectedly drained when I need to use my device.

This is the first log entry (earliest) today at 13:39, when dataaccessd started crashing, before a slew of 4-6 entries per minute in the log directory on my Mac (after syncing) - see below.

Question - any ideas how to fix this ? It was happening before the latest iOS upgrades so I don't think the standard "reload the os" answer is the fix....

From: dataaccessd 2010-12-01-133956ssherrats-iPhone.crash

Incident Identifier: 23D8E941-7243-4C7D-BB52-F9641813E031
CrashReporter Key: bf083330b2bcfde06f73366c5025c8bc7d298440
Hardware Model: iPhone2,1
Process: dataaccessd [23]
Path: /System/Library/PrivateFrameworks/DataAccess.framework/Support/dataaccessd
Identifier: dataaccessd
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2010-12-01 13:39:56.277 -0800
OS Version: iPhone OS 4.2.1 (8C148a)
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0

Thread 0 Crashed:
0 libSystem.B.dylib 0x311de2d4 0x31165000 + 496340
1 libSystem.B.dylib 0x311de2c4 0x31165000 + 496324
2 libSystem.B.dylib 0x311de2b6 0x31165000 + 496310
3 libSystem.B.dylib 0x311f2d72 0x31165000 + 580978
4 libstdc++.6.dylib 0x301dea20 0x3019a000 + 281120
5 libobjc.A.dylib 0x319a2594 0x3199c000 + 26004
6 libstdc++.6.dylib 0x301dcdf2 0x3019a000 + 273906
7 libstdc++.6.dylib 0x301dce46 0x3019a000 + 273990
8 libstdc++.6.dylib 0x301dcf16 0x3019a000 + 274198
9 libobjc.A.dylib 0x319a14c4 0x3199c000 + 21700
10 CoreFoundation 0x314d07c2 0x31430000 + 657346
11 Foundation 0x31d16242 0x31cc4000 + 336450
12 DADaemonEAS 0x35d817e0 0x35d75000 + 51168
13 DADaemonEAS 0x35d88046 0x35d75000 + 77894
14 DADaemonEAS 0x35d83b22 0x35d75000 + 60194
15 DADaemonEAS 0x35d8968e 0x35d75000 + 83598
16 DADaemonEAS 0x35d80f7e 0x35d75000 + 49022
17 DADaemonEAS 0x35d7694e 0x35d75000 + 6478
18 DADaemonEAS 0x35d794ea 0x35d75000 + 17642
19 DADaemonEAS 0x35d85ab8 0x35d75000 + 68280
20 DAEAS 0x3430c2d6 0x342d1000 + 242390
21 DAEAS 0x3431bec6 0x342d1000 + 306886
22 DAEAS 0x3431cab8 0x342d1000 + 309944
23 Foundation 0x31cf6806 0x31cc4000 + 206854
24 Foundation 0x31cf6788 0x31cc4000 + 206728
25 CFNetwork 0x3465047e 0x34641000 + 62590
26 CFNetwork 0x346451f2 0x34641000 + 16882
27 CFNetwork 0x3464537a 0x34641000 + 17274
28 CFNetwork 0x346450e4 0x34641000 + 16612
29 CFNetwork 0x34645096 0x34641000 + 16534
30 CFNetwork 0x34645014 0x34641000 + 16404
31 CFNetwork 0x34644f92 0x34641000 + 16274
32 CoreFoundation 0x314867d6 0x31430000 + 354262
33 CoreFoundation 0x314585b0 0x31430000 + 165296
34 CoreFoundation 0x31457e54 0x31430000 + 163412
35 CoreFoundation 0x31457c80 0x31430000 + 162944
36 CoreFoundation 0x31457b88 0x31430000 + 162696
37 dataaccessd 0x00001ca6 0x1000 + 3238
38 dataaccessd 0x00001b38 0x1000 + 2872

Thread 1:
0 libSystem.B.dylib 0x31192974 0x31165000 + 186740
1 libSystem.B.dylib 0x3123c704 0x31165000 + 882436
2 libSystem.B.dylib 0x3123c174 0x31165000 + 881012
3 libSystem.B.dylib 0x3123bb98 0x31165000 + 879512
4 libSystem.B.dylib 0x311e024a 0x31165000 + 504394
5 libSystem.B.dylib 0x311d8970 0x31165000 + 473456

Thread 2:
0 libSystem.B.dylib 0x31166268 0x31165000 + 4712
1 libSystem.B.dylib 0x31168354 0x31165000 + 13140
2 CoreFoundation 0x31458648 0x31430000 + 165448
3 CoreFoundation 0x31457ed2 0x31430000 + 163538
4 CoreFoundation 0x31457c80 0x31430000 + 162944
5 CoreFoundation 0x31457b88 0x31430000 + 162696
6 Foundation 0x31cc88e4 0x31cc4000 + 18660
7 Foundation 0x31cc87fc 0x31cc4000 + 18428
8 AppSupport 0x309ee822 0x309e4000 + 43042
9 Foundation 0x31cc8242 0x31cc4000 + 16962
10 libSystem.B.dylib 0x311df886 0x31165000 + 501894
11 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352

Thread 3:
0 libSystem.B.dylib 0x31166268 0x31165000 + 4712
1 libSystem.B.dylib 0x31168354 0x31165000 + 13140
2 CoreFoundation 0x31458648 0x31430000 + 165448
3 CoreFoundation 0x31457ed2 0x31430000 + 163538
4 CoreFoundation 0x31457c80 0x31430000 + 162944
5 CoreFoundation 0x31457b88 0x31430000 + 162696
6 Foundation 0x31cf15f6 0x31cc4000 + 185846
7 Foundation 0x31ccf192 0x31cc4000 + 45458
8 Foundation 0x31cc8242 0x31cc4000 + 16962
9 libSystem.B.dylib 0x311df886 0x31165000 + 501894
10 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352

Thread 4:
0 libSystem.B.dylib 0x3118a68c 0x31165000 + 153228
1 CoreFoundation 0x3148f662 0x31430000 + 390754
2 libSystem.B.dylib 0x311df886 0x31165000 + 501894
3 libSystem.B.dylib 0x311d4a88 0x31165000 + 457352

Thread 5:
0 libSystem.B.dylib 0x311e09e0 0x31165000 + 506336
1 libSystem.B.dylib 0x311e0364 0x31165000 + 504676
2 libSystem.B.dylib 0x311d8970 0x31165000 + 473456

Thread 6:
0 libSystem.B.dylib 0x311e09e0 0x31165000 + 506336
1 libSystem.B.dylib 0x311e0364 0x31165000 + 504676
2 libSystem.B.dylib 0x311d8970 0x31165000 + 473456

Thread 0 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x3e1a82e8
r4: 0x00000006 r5: 0x301dc989 r6: 0x001afa8c r7: 0x2fdfe1b4
r8: 0x001af560 r9: 0x00000065 r10: 0x33bb3910 r11: 0x00139890
ip: 0x00000025 sp: 0x2fdfe1b4 lr: 0x311de2cb pc: 0x311de2d4
cpsr: 0x00000010

Binary Images:
0x1000 - 0x1fff dataaccessd armv7 <cb2dfcefb43430f4550f0187890de64a> /System/Library/PrivateFrameworks/DataAccess.framework/Support/dataaccessd
0x23000 - 0x24fff dns.so armv7 <fcefecb2d5e095ba88127eec3af57ec0> /usr/lib/info/dns.so
0x2fe00000 - 0x2fe27fff dyld armv7 <06e6959cebb4a72e66c833e26ae64d26> /usr/lib/dyld
0x30122000 - 0x30177fff libvDSP.dylib armv7 <9365fc6cae1bff737257e74faf3b1f26> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib vDSP.dylib
0x3019a000 - 0x301e4fff libstdc++.6.dylib armv7 <53a6e7239c3908fa8c2915b65ff3b056> /usr/lib/libstdc++.6.dylib
0x3024e000 - 0x302fdfff WebKit armv7 <644a1c6120578f896bed7121307aa2af> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x30319000 - 0x30320fff libbz2.1.0.dylib armv7 <2989ea7a5cad2cfe91bd632b041d0ff4> /usr/lib/libbz2.1.0.dylib
0x30569000 - 0x3056afff CoreSurface armv7 <f7caaf43609cfe0e475dfe83790edb4d> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x30746000 - 0x3074ffff CoreVideo armv7 <2092d5deb6b234e04678b7c1878ccd81> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x30750000 - 0x3075bfff libz.1.dylib armv7 <fabaddbcbc8c02bab0261df9d78e0e25> /usr/lib/libz.1.dylib
0x3075f000 - 0x30761fff MobileInstallation armv7 <8e6b0d9f642be06729ffdaaee97053b0> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallati on
0x30792000 - 0x3079cfff AccountSettings armv7 <19c79f81d5d55fe2e6b618fcdc28258e> /System/Library/PrivateFrameworks/AccountSettings.framework/AccountSettings
0x3079d000 - 0x307a3fff liblockdown.dylib armv7 <5bbd9b3f5cfece328f80c403a8805ce9> /usr/lib/liblockdown.dylib
0x30853000 - 0x30854fff DataMigration armv7 <babbc72d4d48325de147d5103d7bc00d> /System/Library/PrivateFrameworks/DataMigration.framework/DataMigration
0x309e4000 - 0x30a16fff AppSupport armv7 <47c8055ac99f187174ca373b702ffa68> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x30a1d000 - 0x30a54fff Security armv7 <cd28e102950634ae7167ddee9c686d36> /System/Library/Frameworks/Security.framework/Security
0x30a5d000 - 0x30b0bfff QuartzCore armv7 <83a8e5f0033369e437069c1e758fed83> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x30c3d000 - 0x30c5afff AppleAccount armv7 <e3833276f8877499c8dd76b3b3d88501> /System/Library/PrivateFrameworks/AppleAccount.framework/AppleAccount
0x30c7e000 - 0x30caafff DataAccess armv7 <6b9b5235b449335ce5c66d53f32004cd> /System/Library/PrivateFrameworks/DataAccess.framework/DataAccess
0x30d3c000 - 0x30d3ffff ActorKit armv7 <f5d038591e564646e9237a59c6c14293> /System/Library/PrivateFrameworks/ActorKit.framework/ActorKit
0x30d54000 - 0x30d61fff libbsm.0.dylib armv7 <0f4e595e6eb2170aceb729f32b5de8c2> /usr/lib/libbsm.0.dylib
0x30e16000 - 0x30e16fff liblangid.dylib armv7 <83e91e0930ee03bc33604f1a85ecf402> /usr/lib/liblangid.dylib
0x30faf000 - 0x30feefff libGLImage.dylib armv7 <a7c117c92607a512823d307b8fdd0151> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib
0x3101d000 - 0x3101ffff CrashReporterSupport armv7 <30a5f1edcdb9ffe868a620199a4cbe12> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterS upport
0x31020000 - 0x3102cfff SpringBoardServices armv7 <137b75e19b2450c234dec88d538798ff> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServ ices
0x31077000 - 0x3115ffff libGLProgrammability.dylib armv7 <1f478a71783cd7eb4ae9ef6f2dcea803> /System/Library/Frameworks/OpenGLES.framework/libGLProgrammability.dylib
0x31160000 - 0x31163fff IOSurface armv7 <deff02882166bf16d0765d68f0542cc8> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x31165000 - 0x31276fff libSystem.B.dylib armv7 <138a43ab528bb428651e6aa7a2a7293c> /usr/lib/libSystem.B.dylib
0x31324000 - 0x31336fff PersistentConnection armv7 <cd2a699aa5036bdad0517603ba4db839> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConn ection
0x31337000 - 0x31371fff IOKit armv7 <eb932cc42d60e55d9a4d0691bcc3d9ad> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x313fa000 - 0x3140dfff libmis.dylib armv7 <855aefc263c6c20e6cf8723ea36125a2> /usr/lib/libmis.dylib
0x31430000 - 0x31516fff CoreFoundation armv7 <01441e01f5141a50ee723362e59ca400> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x31517000 - 0x31519fff IOMobileFramebuffer armv7 <1040629f37795146c9dcac8ab1a868fc> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebu ffer
0x3151b000 - 0x3151efff CertUI armv7 <5f37446c6b65a8c38ab6233c2e33da66> /System/Library/PrivateFrameworks/CertUI.framework/CertUI
0x3151f000 - 0x3153afff DADaemonSupport armv7 <019523c36bd94fd3dd5a98bb110dc33a> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DADaemonSuppo rt.framework/DADaemonSupport
0x31549000 - 0x3154cfff CaptiveNetwork armv7 <a2af7147f5538d7669b14fa7b19b5a7c> /System/Library/PrivateFrameworks/CaptiveNetwork.framework/CaptiveNetwork
0x3155c000 - 0x3167cfff CoreGraphics armv7 <2d7b40a7baca915ce78b1dd9a0d6433b> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x3167d000 - 0x3168dfff DataAccessExpress armv7 <6767a1e2afbc86a1ec63dd784f5d3677> /System/Library/PrivateFrameworks/DataAccessExpress.framework/DataAccessExpress
0x316cf000 - 0x31702fff iCalendar armv7 <6eb50e720d642f5ac510a36989b276b2> /System/Library/PrivateFrameworks/iCalendar.framework/iCalendar
0x31703000 - 0x31705fff libgcc_s.1.dylib armv7 <e66758bcda6da5d7f9b54fa5c4de6da2> /usr/lib/libgcc_s.1.dylib
0x317f9000 - 0x3183cfff ManagedConfiguration armv7 <27ac7f05482a8aa9977150f34f9be6eb> /System/Library/PrivateFrameworks/ManagedConfiguration.framework/ManagedConfigu ration
0x3186b000 - 0x3187afff Notes armv7 <7d7a3d10a349471cd2757a479d131b31> /System/Library/PrivateFrameworks/Notes.framework/Notes
0x3187b000 - 0x31991fff libicucore.A.dylib armv7 <e7fbb2ac586567e574dc33d7bb5c4dc9> /usr/lib/libicucore.A.dylib
0x31992000 - 0x3199bfff WebBookmarks armv7 <9f1760206eaef20c605c5d98e45c823e> /System/Library/PrivateFrameworks/WebBookmarks.framework/WebBookmarks
0x3199c000 - 0x31a5dfff libobjc.A.dylib armv7 <aaf5671a35f9ac20d5846703dafaf4c6> /usr/lib/libobjc.A.dylib
0x31a7d000 - 0x31a8afff OpenGLES armv7 <a12565ffb5bb42e3019f1957cd4951d0> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x31ae0000 - 0x31ae3fff libGFXShared.dylib armv7 <3a385ed495379116abbe50bc8cd5a612> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x31b29000 - 0x31b52fff MobileCoreServices armv7 <54484a513761868149405df7fc29b5c0> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x31b58000 - 0x31b5ffff AggregateDictionary armv7 <71372c95d4af7af787d0682a939e40ac> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictio nary
0x31bcc000 - 0x31be1fff libresolv.9.dylib armv7 <ea156820997ae9a2baf664d0f79f18d7> /usr/lib/libresolv.9.dylib
0x31cc4000 - 0x31de3fff Foundation armv7 <81d36041f04318cb51db5aafed9ce504> /System/Library/Frameworks/Foundation.framework/Foundation
0x31e18000 - 0x31e63fff libBLAS.dylib armv7 <251c5ac7380802a16e30d827c027c637> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib BLAS.dylib
0x33856000 - 0x33884fff MIME armv7 <1989502ce4da514314647c6a0098d8e7> /System/Library/PrivateFrameworks/MIME.framework/MIME
0x33886000 - 0x3389cfff EAP8021X armv7 <36659ec2b9def7b5798a05327e369247> /System/Library/PrivateFrameworks/EAP8021X.framework/EAP8021X
0x33c5e000 - 0x33ce7fff Message armv7 <69cb7cb1d1d7865fc04dc341544174b6> /System/Library/PrivateFrameworks/Message.framework/Message
0x33ce8000 - 0x342d0fff WebCore armv7 <d6bd9cf88ee82ab6b0e33e0ae1190772> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x342d1000 - 0x34341fff DAEAS armv7 <4d331bcf15c2b452aa3c02d21b99067a> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DAEAS.framewo rk/DAEAS
0x34342000 - 0x3436bfff ContentIndex armv7 <247576cb4f1ff8e92650ae3cb4973760> /System/Library/PrivateFrameworks/ContentIndex.framework/ContentIndex
0x3438c000 - 0x343e5fff EventKit armv7 <037c4bb5e2529e6004d0e1f3d95a84cc> /System/Library/Frameworks/EventKit.framework/EventKit
0x343e6000 - 0x34405fff Bom armv7 <0f5fd6057bad5e1677869500d636821f> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x344ea000 - 0x34623fff AudioToolbox armv7 <657b327f2ceee9f22f9474f2f9bddbe6> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x34628000 - 0x34628fff Accelerate armv7 <29dd5f17440bbb6e8e42e11b6fceda9a> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x34641000 - 0x34700fff CFNetwork armv7 <02fe0e30e54fffdcbbbd02e8cb812c3a> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x3471b000 - 0x3473cfff MobileSync armv7 <cff20dfe818febca9f3232426d59a42d> /System/Library/PrivateFrameworks/MobileSync.framework/MobileSync
0x34941000 - 0x34944fff ApplePushService armv7 <9d1eb7b11f0f146c941efbab2c055606> /System/Library/PrivateFrameworks/ApplePushService.framework/ApplePushService
0x34952000 - 0x3495afff MobileWiFi armv7 <b29d4c5e300ef81060e38f72bb583c02> /System/Library/PrivateFrameworks/MobileWiFi.framework/MobileWiFi
0x3495b000 - 0x34bf5fff libLAPACK.dylib armv7 <2e77d87e96af938aacf0a6008e6fb89d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/lib LAPACK.dylib
0x34bf6000 - 0x34c36fff CoreAudio armv7 <f32e03ee4c68f0db23f05afc9a3cc94c> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x35227000 - 0x3532efff CoreData armv7 <29b1ab7d339e42a6ff6923e54cf43e7b> /System/Library/Frameworks/CoreData.framework/CoreData
0x35336000 - 0x353dffff libxml2.2.dylib armv7 <b3d82f80a777cb1434052ea2d232e3df> /usr/lib/libxml2.2.dylib
0x353e1000 - 0x3548efff JavaScriptCore armv7 <3f2df600942dc72aad312b3cc98ec479> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x354b4000 - 0x354bcfff libkxld.dylib armv7 <854e82fe66feef01e54c7c8a209851ac> /usr/lib/system/libkxld.dylib
0x354fa000 - 0x3553cfff CoreTelephony armv7 <96d3af505b9f2887e62c7e99c157733e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x3553d000 - 0x3558afff libsqlite3.dylib armv7 <55038e5c1d4d0dbdd94295e8cad7a9a4> /usr/lib/libsqlite3.dylib
0x35a37000 - 0x35a3cfff MobileKeyBag armv7 <cec3f3271fc267c32c169ed03e312d63> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x35a95000 - 0x35a95fff vecLib armv7 <e53d234e808c77d286161095f92c58cf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vec Lib
0x35bcc000 - 0x35bfbfff SystemConfiguration armv7 <3f982c11b5526fc39a92d585c60d8a90> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x35d62000 - 0x35d6efff GraphicsServices armv7 <0099670dccd99466653956bf918d667a> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x35d75000 - 0x35d98fff DADaemonEAS armv7 <a6c7e0fc1fbee8494bf605c5ec0bee6f> /System/Library/PrivateFrameworks/DataAccess.framework/Frameworks/DAEAS.framewo rk/DADaemonEAS.bundle/DADaemonEAS
0x35db1000 - 0x35e44fff ImageIO armv7 <5b5a294d4250eff866fdbf891b1e8b34> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x35e52000 - 0x35e85fff AddressBook armv7 <7c87e0175c8649d6832419da8a1cfac1> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x35f4a000 - 0x35f4ffff libMobileGestalt.dylib armv7 <5f73c7138ee1cb7103a98aec99f9ed88> /usr/lib/libMobileGestalt.dylib
0x35f86000 - 0x35fbcfff CoreText armv7 <b9b5c21b2d2a28abc47842c78c026ddf> /System/Library/Frameworks/CoreText.framework/CoreText
0x3607f000 - 0x3608efff MobileDeviceLink armv7 <8f2fc7e811bc57f7a09d7df81c329e1a> /System/Library/PrivateFrameworks/MobileDeviceLink.framework/MobileDeviceLink

iPhone 3GS, iOS 4, 4.1.2

Posted on Dec 1, 2010 3:49 PM

26 replies

Mar 26, 2012 1:38 AM in response to ZZamboni

PLEASE SOMEONE HELP ME!!

I have now been having this problem with 2 seperate new phones!!

I had to get a new iphone 4 due to a cracked screen on my preivous one, got a new one march 7 and it had been perfect no battery or heat problems.

Then last week I noticed that by mid day my battery was very low, so I tried not to use it as much. But even then with no usage the % was just going down rapidly when it was doing nothing. So I went into an Apple store and they just said 'oh you need a new phone'. No explaination of what it could of been or that it is strange to have just happened.

So take the new phone home and sync and back it all up so that all my info is on there and GUESS WHAT it is the exact same, battery just draining away. I did all the resets and all the stuff I have seen suggested but still no luck!

PLEASE someone help and explain this 'CalDAV' stuff to me in very simple terms!!!!!

Mar 30, 2012 1:23 AM in response to sjsherratt

I have an iPhone 4 linked to two separate MSExchange e-mail accounts. Same issue of the phone running warm with the battery draining within 6 hours with no apparent activity on the phone and the phone very warm while charging.

This is obviously a significant issue that must be addressed with a fix. I have tried some of the solutions suggested above (i.e. terminating the mail application, deleting the account and re-installing) with no apparent effect.

lyallp

Level 1

16 points

Apr 1, 2012 5:51 PM in response to sjsherratt

I ended up buying 'System Status' app to assist in diagnosing this.

There appeared to be some out of sync data that when attempted, caused a problem which resulted in a re-attempt, which had a problem, which caused massive battery drain (in the order of 20% per hour) and a nice warm phone, even after re-booting.

I found that deleting the entire Exchange Email config and re-adding it fixed the problem.

As an aside, I have also found that 'Reset network settings' fixes 'personal hotspot' connectivity glitches (Telstra Australia does allow tethering).

Apr 2, 2012 11:42 AM in response to sjsherratt

It sounds silly, but I was able to fix the problem by closing out my apps at the end of each day. I must have had an app continuously running even after I restored my phone. I haven't had a problem with the battery draining fast or the phone running hot since. Funny that in 3 trips to the genius bar nobody ever offered this simple fix. Hope it works for others.

Apr 24, 2012 5:47 PM in response to janeewalk

It is also a good idea to keep track of the remaining charge. That way you will not be out of juice at a crucial moment. Follow these 4 easy steps to get that going.

I may receive some form of compensation, financial or otherwise, from my recommendation or link.

Nov 18, 2012 11:03 AM in response to tmribeiro

This solved my issue, I think.

I am using an App named Monitor. Over the past two days my battery drained in a couple of hours. I noticed in Monitor that the CPU would spike at a regular interval even after the phone was rebooted. I check the Console App on my Mac for ~/Library/Logs/CrashReporter/MobileDevice/MyiPhone/ and saw three days worth of /System/Library/PrivateFrameworks/DataAccess.framework/Support/dataaccessd crashes.

It may have fixed but, but I'm going to keep an eye on the logs, CPU utilization and of course the battery life.

Dec 16, 2012 6:42 AM in response to Tim_McManus

Tim,

But what did you do? I don't undesrtand what action you performed to correct the problem. I followed the "tmribeiro" suggestion but doesn't work for me. ReportCrash and DataAccessd processes are still runningand draining my battery. Thanks in advance.

Dec 16, 2012 8:56 AM in response to Frank2010

I had to go to the Genius Bar to get to the root cause.

Something was continually crashing and relaunching in iOS. I don't know exactly what it was, but that was the cause of the battery drain.

I had to wipe the phone and restore iOS back to factory defaults. I was told I shouldn't restore from backup. But I did that anyway and the battry drain reappeared immediately.

So, you have to wipe your phone and do not restore from backup. You'll have to add all of your data manually, which is a major pain in the butt, but with lCloud it wasn't too bad.

I did this about three weeks ago and the phone has been working perfectly since.

Dec 16, 2012 9:34 AM in response to Tim_McManus

Tim, Nice to know that somebody already solved the problem. Thanks a lot for your prompt response will try that way next week.

lyallp

Level 1

16 points

Dec 16, 2012 11:22 PM in response to Frank2010

As I posted earlier, my problem was the iPhone/Exchange had gotten their knickers in a twist.

Simply removing the email account to Exchange and re-adding the Exchange account is quick and painless. Much quicker than a reset/restore !

Of course, if you don't have an Exchange email account, my solution won't solve your problem 🙂

sputuk

Level 1

0 points

Apr 8, 2015 2:33 PM in response to lyallp

I'Ve had this issue recur a few times now on different phones and iPads and each time I forget the cause until Google finds me this article to remind me again.

By deleting my Exchage account and using Console app I can immediately see the crashing stop. Adding the account back and keeping track, the crashing doesn't recur. It takes a while for everything from Exchange to resync but much quicker than a complete phone reset and set up from scratch!

some of the errors in the logs are quite funning "You're once, twice 3 times failed" etc. but the immediate cooling of the device and restored battery life is much more useful 🙂

iPhone hot, Battery draining fast, dataaccessd crashing repeatedly