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240747 Views 1,037 Replies Latest reply: Jun 30, 2010 7:04 AM by Andy Thomas
Currently Being ModeratedJun 24, 2010 1:47 AM (in response to squarejp)i've tried to reproduce this issue, but the most i've lost was 2 bars, then it goes back up to 5 bars within 10 seconds. i've tried numerous times, but it looks good to me. i've held my fingers over both lines for at least a good minute, only drops 1 bar. covering both lines does drop the reception, but not enough to drop calls for me. im thinking it just depends on the location. im gonna see if this effects my calls tomorrow.MacBook Pro, Mac OS X (10.6.3)
Currently Being ModeratedJun 24, 2010 1:49 AM (in response to smithx41)It may simply be the signal being blocked by your hand, not a design "flaw."
See this video where the user duplicates the issue on a 3 GS:
http://www.maccast.com/2010/06/23/iphone-4-antenna-issue-on-a-3gs/Quad 2.5 GHz G5, 5 GB | 15" 2.6 GHz MBP Penryn, 4 GB | 1 TB Dual-Band TC, Mac OS X (10.6.4)
Currently Being ModeratedJun 24, 2010 2:40 AM (in response to StevenB4)Darn, it does seem to effect the signal. Go here to try it
holding your thumb over the left antennae line will cause the transmission to slow down. I am getting speeds at 1700 with 4 or 5 bars.
and down to 200 with no bars while thumb over line.
Good news is that with a case on phone (I am using black silicone otterbox skin from my 3gs) perfect signal!!
Message was edited by: doobias123iphone 3g/Macbook
Currently Being ModeratedJun 24, 2010 3:29 AM (in response to StevenB4)Besides the obvious solution - the bumper, I may suggest another one, more design-friendly: some Zagg cut strips all over metal antennas, but separated in the black rubber places, where the antennas themselves get separated.
The idea is this: the real issue is not touching the black separation strip between antennas, but short-circuiting the distinct antennas! While you're touching 2 distinct antennas, the signal gets noisy because of frequencies mix-up. Actually, touching the black rubber band puts in contact 2 frequencies that should never be mingled.
A small strip of Zagg insulation (or whatever transparent thin foil you may find) that prevents touching 2 different antennas in the same time will do.
(see utestme.com)Lenovo S12, Windows 7
Currently Being ModeratedJun 24, 2010 4:06 AM (in response to William Kucharski)
William Kucharski wrote:
It may simply be the signal being blocked by your hand, not a design "flaw."
Well, since the device was DESIGNED to be held in your hand and used as a phone, how can you state that the DESIGN isn't FLAWED ? ? ? If the design wasn't flawed, we'd be able to hold it in our hands WITHOUT BLOCKING THE SIGNAL...Dell, Windows Vista, iPhone 4 finally ! !!
Currently Being ModeratedJun 24, 2010 4:07 AM (in response to StevenB4)Steven are you running ios4 on the 3G and 3GS ?
Mine 3G works OK however I hold it.PowerBook G4 1GHz, PowerMac G5 Dual 2.7GHz, MacBookPro 17", MacPro 2,8GHz Quad,, Mac OS X (10.6.2), iPod 10Gb, iPhone 2G
Currently Being ModeratedJun 24, 2010 4:31 AM (in response to smithx41)First of all, i agree its a failure from apple.
Im from holland and don't have the iphone 4 yet. however i know this is a lame idea but does a tape work to solve the problem?
and for those who dont want to put something around their phone:
try pressing your phone against your head when pussing on the back
ts a Touch Screen and a NON-Touch phone!
hope it will be fixed!3GS, iOS 4
Currently Being ModeratedJun 24, 2010 4:47 AM (in response to smithx41)here's an idea, just don't cover the black lines then!!! they are low enough on the phone that you can still hold the phone without even going near them. are we a nation of giant hands!!!compaq, Windows XP
Currently Being ModeratedJun 24, 2010 4:58 AM (in response to smithx41)I'm not sure it this is present in all iPhones or not. I've tried to reproduce the issue with my iPhone 4, but the best I can manage is dropping 1 bar (from 5 to 4) by cupping both my hands around the phone so that I cover virtually the entire band, including the 2 black slits near the bottom, which I'm making sure to touch. Simply pressing my thumb against the left, right, or both is having no impact on my signal strength.
Now I'm in a place with a particularly strong signal, but if merely touching the black slits were causing some sort of electrical interference as some have surmised, then signal strength wouldn't matter.
So, FWIW, this isn't easily reproducible on my iPhone 4. I've tried holding the black slit(s) and covering portions of the frame for minutes at a time. Maybe it is tied to signal strength, so I'll give it another go when I'm in an area with a less reliable signal. For now though, I'm pleased with the phone.MBP 2.66 GHz i7, 8 GB/480GB SSD, 24" LED Cinema Display, Mac OS X (10.6.4), iPhone 4, iPad 3G, iPod Nano 5G, TV, Canon (HV20, 5D MkII, 30D, G10)