I’m just trying to install TWRP and Cyanogenmod 12.1 (cm-12.1-20151230-NIGHTLY-taoshan / open_gapps-arm-5.1-nano-20151225), and having some problems.
Sorry for the long mail, at the end I have put a short summary of the current status of my Xperia L (C3105).
I succeeded to unlock the bootloader, afterwards I installed the stock rom (C2105_15.3.A.1.17_1272-2171 R2B_Generic DE). So far, so good.
However, all attempts to install TWRP and/or Cyanogenmod have failed so far.
At first I tried to install TWRP (latest version) via the app method (TWRP manager app form Google app store). The app reported a successful flash, but somehow I could not get to recovery when I rebooted while rocking the vol up/down buttons. Also the notification light does not any more turn purple when booting up.
Afterwards I flashed the above stock rom again because it was not clear for me whether the phone was stucked in a boot loop. I guess that this also re-installed the stock recovery again? Anyhow, since then and up to now even when I reboot and constantly press the volume buttons (both) while the phone is booting up, it still boots into android and not into the recovery.
So I guess that the recovery is not correctly installed at the moment.
I tried also with the XDA recovery-installer-taoshan-1.3.apk to install another version of TWRP (an older one), but this did not work as well, with a very similar behaviour, but afterwards I was not either to boot anything, neither the recovery nor the android system, but was possible to boot into fastboot mode so that I could re-flash the stock rom.
Now, even when I neglect the recovery and try to install cynogenmod with the command "adb sideload update.zip" (obviously with exact file name instead of update.zip), it always says the following:
ADB server didn’t ACK
* failed to start daemon *
adb server is out of date. killing…
*daemon started successfully *
error: closed
I have to say that after flashing the stock rom and connecting the phone to the computer, I denied to re-install the PC companion software, because from my perspective all drivers etc should be installed. But I do not want to exclude that this could also be an issue here.
I just tried to install the universal ADB drivers, seleted repair drivers, but still the ADB connection seems to not work properly.
My device manager reports for the driver "Sony so0103 ADB Interface Driver".
Just to summarize:
– I have rooted the phone successfully (also re-rooted after flashing the stock rom)
– the bootloader is unlocked (confirmed via service menu)
– recovery does not work
– above mentioned stock rom is installed
– stock rom is booting fine
Does anyone have a suggestion of how to solve the problems and what the next steps should be? I would also very much appreciate any hint on what I have possibly done wrong in order to learn from it.
Many thanks in advance and my best regards,
Henning