[Q] Lenovo K1 UMTS Base Firmware

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Does anyone have the Stock Rom from the germarn UMTS model?

I have been rooting my device with the none UMTS version (US) and now can't go back. Unfortunately it is not posted in Lenovos OTA section and the versions with letter M in the name for other countrys fail to boot. Maybe some files are missing there (blob)!

The version I had before I updated and rooted it was:

K1 A301 01 01 111026 M GE.zip

I hope someone can upload it for me or get me a link.

Thank you.

You don't need the original firmware. Just flash US-02 (with nvflash). Next, take "K1_A301_02_02_111004_GE.zip" and then "K1_A301_11_11_111213_M_GE.zip". After that, you can get the latest OTA via the settings menu. This should work for the original US-02 as well as the rooted US-02.

Thanks. Working fine. Rooting again with nflash was a little complicated. But now I have the issue, that the external sd card could not be mounted, so i cant do app2sd.

Sent from my K1 using Tapatalk

Can you explain what you did exactly? It worked for me this way: flash rooted US-02-image with nvflash->turn on backdoor to keep root during OTA updates->install "K1_A301_02_02_111004_GE.zip" (move zip file to /sdcard/Download/update.zip and rebooot into recovery)->install "K1_A301_11_11_111213_M_GE.zip" (move zip file to /sdcard/Download/update.zip and rebooot into recovery)->perform OTA update via settings menu->install superuser and busybox and check if it works->reboot->turn off backdoor->reboot.

If you don't have the backdoor tools yet or a rooted US-02 image, look at this thread and download the file "K1 - PermanentRoot.7z".

I did all that.
But my root is gone after I flash K1_A301_11_11_111213_M_GE
I still got no sound after OTA to K1_A301_12_12_120109_M_GE

How to re-root?

You have no sound because the backdoor is still enabled. You have to install Superuser and Busybox (you can try to install "BusyBox Installer" and "Superuser" in Google Play). If both are working, reboot and disable the backdoor.

Superuser App installs fine but under Settings/General it shows:
SU binary vnull

If I try to update it tells me it does not find any old superuser and quits.

When I Try to install busybox it tells me it cant find superuser.

Yes I got no sound but how do I use the backdoor to install superuser?

...

Check out this post. This Rom (download K1_CWM_120109_M_GE_Rooted.zip)

should work , includes Root an CWM based on K1_A301_12_12_120109_M_GE.zip.

http://forum.xda-developers.com/show....php?t=1564002

Did anyone know, or could add init.d support because of ability to move app2sd?