[Q] stock rooted Lollipop OTA fails?

moriarty00 said:

All,

Thanks in advance for any help you can provide. I have a Nexus 4 that I rooted and installed CWM recovery on, but I never installed any new kernels, ROMs, or radios. I'm currently on 4.4.4 and I want to upgrade to Lollipop. The OTA upgrade failed. So I tried returning to stock recovery and doing both the OTA and adb sideloading the OTA zip. Both fail.

The error message is "Package expects build fingerprint of google/occam/mako:4.4.4/KTU84P/1227136:user/release-keys or google/occam/mako:5.0/LRX21T/1576899:user/release-keys; this device has google/occam/mako:4.4/KRT160/907817:user/release-keys." (But I definitely have 4.4.4 on my phone, not 4.4.0.)

The extra difficulty is that I really, really do not want to wipe my phone. I have a lot of apps with a lot of configuration and other user data. So is there anything I can do? I guess I should try unrooting somehow? Or is there some other zip I can download that, through some type of recovery, will install the OTA without doing this check and also without wiping me?

Thanks again!

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moriarty00 said:

Actually, I figured out what works! This was on a stock rooted device with stock recovery, but I bet it would work with custom recovery too. Instructions modified from https://pay.reddit.com/r/nexus4/comments/1qny3f/howto_update_your_stock_w_lte_nexus_4_without/ .

1. Download the image you want from https://developers.google.com/android/nexus/images . Extract it, extract the .zip file inside it too, and collect all of the .img files into one folder.
2. adb reboot bootloader (and wait until the bootloader comes up)
3. fastboot flash bootloader bootloader-mako-makoz30f.img (or whatever file has a similar name, if you got a different image than I did)
4. fastboot reboot-bootloader (and wait until the bootloader comes back up)
5. fastboot flash radio radio-mako-m9615a-cefwmazm-2.0.1701.04.img (or whatever file has a similar name, if you got a different image than I did)
6. fastboot reboot-bootloader (and wait until the bootloader comes back up)
7. fastboot flash boot boot.img
8. fastboot flash recovery recovery.img
9. fastboot flash system system.img
10. fastboot format cache
11. fastboot reboot
12. Don't panic unless you've seen the startup animation for at least 15 minutes without anything else happening.

I lost root, but I imagine re-custom-recoverying and re-rooting won't be any harder than the first time around.

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1. I used the app Flashify from Play Store to flash stock 4.4.4 recovery. I downloaded the stock factory image from google's own site (this one), used 7zip to extract the archives (tgz and tar), found "recovery.img" and transfered that to my phone. Then chose that file in Flashify.
2. Uninstalled all apps that made system changes, like Xposed framework and mods, BetterBatteryStats etc.
3. Removed Root with SuperSU cleanup function
4. Rebooted for good measure and apply OTA from notification - wait an hour or two for it to complete
5. Profit (do we still say that on the internet? Getting old here...)

venu123 said:

OTA wants complete stock and obviously it doesn't think so about your phone. One option could be to back up to the cloud or some place outside the phone with TiBu (or whatever backup app you trust), then flash lollipop and try restore from TiBu. Another option would be to unroot (Supersu has an option to completely unroot), then retry.

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moriarty00 said:

Yup, perfectly safe! Just make sure not to flash other images, like userdata.img.

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Package expects build fingerprint of google/occam/mako:4.4.4/KTU84P/1227136:user/release-keys or google/occam/mako:5.0/LRX21T/1576899:user/release-keys; this device has google/occam/mako:4.3/JWR66V/737497:user/release-keys.

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