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44 lines
2.4 KiB
Markdown
44 lines
2.4 KiB
Markdown
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---
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title: Manual Firmware Update
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layout: default
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created: 2011-12-16 22:26:17 +0100
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updated: 2012-04-02 14:46:03 +0200
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toc: false
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tags:
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- know-how
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- hardware
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- samsung
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- galaxy-nexus
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- firmware
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- rom
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---
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*Samsung* seems to have failed, rushing to put out an update to the "Volume-"-bug in their Galaxy Nexus.
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They provided a wrong-signed Google+ and Google Maps app. They failed to update ("Wrong package signature", see [here](http://code.google.com/p/android/issues/detail?id=22435)).
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To find out if your device has this broken firmware, check the build number: **ITL41F.I9250XWKK8** instead of just **ITL41F** (or **ITL41D**) is the broken one.
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To flash the official firmware, do as follows:
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- if you already set up everything on your device, you can make a backup:
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- backup the internal settings using `adb backup -all -system -shared -apk` (enable *USB Debugging* first, under Windows you may have to install some drivers)
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* this will create a file `backup.ab` with your data
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* :warning: There was a bug in 4.0.1 which didn't backup `/mnt/sdcard` using adb. To fix this, manually backup the contents of `/mnt/sdcard` using a
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tool like [FTPServer](https://play.google.com/store/apps/details?id=lutey.FTPServer), [WebSharing](https://play.google.com/store/apps/details?id=nextapp.websharing.r1) or similar
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- download the official firmware from <http://code.google.com/android/nexus/images.html#yakju> (European devices are **yakju**, Verizon is **mysid**)
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- download `fastboot` for Windows from <http://code.google.com/p/android-roms/downloads/detail?name=fastboot-win32.zip&can=2&q=>, for Linux try to find a binary package
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- boot the phone into the bootloader (hold both volume keys and then hold the power key)
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- use `fastboot` to flash the bootloader
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- `fastboot reload-bootloader`
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- use `fastboot` to flash the radio firmware
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- `fastboot reload-bootloader`
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- use `fastboot` to flash the main firmware (that ZIP file)
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- if you really need an unlocked bootloader to easily update in the future, do it now: (it will be locked after update)
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- boot into the bootloader
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- `fastboot oem unlock`
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- reboot
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- to restore your backed up settings, do this:
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- set up all previous Google- and eMail-accounts
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- enable *USB Debugging*
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- restore all internal data using `adb restore backup.ab`
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- maybe: use FTPServer, WebSharing or similar to restore `/mnt/sdcard`
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