macbook pro stuck on boot after installing 10.12.2

MBP mid 2010. Stuck on Apple Logo at 100%.

Deleted Epson ext and so LG Android files in extensions.

You need to change your directory to "cd /Volumes/Macintosh HD/System/Library/Extensions", and then "ls *.kext"

This was extremely helpful. I had tried everything to upgrade from 10.12.5 to 10.12.6 and my Pro kept hanging at 100% status bar. I did as suggested above, and also deleted jawbone.kext, and it booted up perfectly. Thanks!!

Stephen Hi Since you have the most updated comment I need your help. Im a clueless with my macbook air 2013. Everything started with the installing of MacOs Sierra 10.12.2. I tried everything including the safe mode.. and ok now Im watching the black screen with thousands of commands.. but. I see from the comments above that there are some files with a kext extension that might be the problem and should be erased. My big ( and potencially stupid question.. sorry about that) is: how do I obtain that list to understand what file should be erased?..

I mean.. when i see the black screen is stucked in Smartbattery: finished polling type 4... then ... please step by step what should I do ?? help help.. many thanks. Lili.

Hello Stephen!

Can you help me please? I don't understand much of computers and using Terminal.

I enter into Recovery Mode, then get into the Terminal window and then I'm stuck. Don't know what else to do. I typed what was instructed but nothing happens.

What should I do exactly, please?

Hello David!

Can you help me please? I don't understand much of computers and using Terminal.

I enter into Recovery Mode, then get into the Terminal window and then I'm stuck. Don't know what else to do. I typed what was instructed but nothing happens.

What should I do exactly, please?

Well spotted @Davidlefux!

HuaweiDataCardDriver.kext was the culprit for me - simply deleted it - used Target mode with a thunderbolt cable connected to another mac to locate and delete the file.

Very annoying, took me several hours to locate this solution, not expecting to have to dig this deep for a normal OS update :-(

You are gods! Thank you, so much!

You are gods! Thank you, so much!

Lilikleeds, could you do it? I'm stuck as well after I reach Terminal.

Same for me. I removed these two files, and an additional one named Vodafone.kext, and my mac booted like a charm.

I once used a 3G USB dongle from Huawei on my mac. Must be related to those. The dongle was a Huawei model delivered by my local carrier Proximus, but it's also used by Vodafone (and possible other local carriers).

Hey David,

this helped me (and the Apple employee at the Genius Bar) a lot of time. I had the exact same problem and presented your answer as a possible solution. I myself wasn't able to execute all the terminal inputs so they just manually removed all the corrupt files via some sort of Developers OS and now my Mac is back to work. Thanks to you!!

Regards from Germany, Reiner

I have the same problem now, upgrading from Yosemite (10.10.5) to Sierra. Nice to have found this thread so there is a solution. I am just wondering if someone knows there is a list somewhere with the basic .kext files from Apple so I know what to leave untouched (like the com.apple and IOS). As I don't have any of the .kext files which caused the hanging mentioned in the replies so I am not sure what I can take out the get the upgrade running through.

Oké with some luck I found this list: https://pastebin.com/2KnkhFgz

When I compared my list with it I found I have a bunch of extra files (including from Huawei which I didn't recognize before)

Is there anything from this list you would suggest to leave it where it is?

BJUSBLoad.kext

DymoUsbPrinterClassDriver.kext

EPSONUSBPrintClass.kext

ElmediaPlayer.kext

HuaweiDataCardDriver.kext

JMicronATA.kext

LexmarkUSBMerge.kext

RemoteVirtualInterface.kext

SATSMARTDriver.kext

SATSMARTLib.plugin

USBExpressCardCantWake_Huawei.kext

ZTEUSBCDCACMData.kext

ZTEUSBMassStorageFilter.kext

ZoomAudioDevice.kext

hp_Deskjet_io_enabler.kext

hp_Inkjet1_io_enabler.kext

hp_Inkjet3_io_enabler.kext

hp_Inkjet4_io_enabler.kext

hp_Inkjet5_io_enabler.kext

hp_Inkjet8_io_enabler.kext

hp_Inkjet_io_enabler.kext

hp_Laserjet_io_enabler.kext

hp_Officejet_io_enabler.kext

hp_PhotosmartPro_io_enabler.kext

hp_Photosmart_io_enabler.kext

hp_designjet_series.kext

hp_fax_io.kext

hp_io_printerclassdriver_enabler.kext

hp_qc_io_enabler.kext

Thank you very much. I waited 5 days for update. I tried all standard methods as reset PRAM, reinstall MacOS,

recovery from TimeMachine. No success.

After verbose boot (CMD+ V) I saw cause.

And boot to single user mode (CMD+S) I deleted all kext modules from years 2012-2013 (HP drivers, mass storages etc. ).

Good contribution. Thank's again.