Hi Community!
After the failed attempt to update my FP2 with the Updater App to Fairphone OS version 21.05.0 yesterday (an error showed up during the process), my phone was stuck in the starting screen (Fairphone - powered by Android).
I tried a manual update via fastboot, followed all the instructions, but the update process keeps getting stuck at that point:
ERROR: Could not flash the modem partition on device XXX.
ERROR: Please unplug the phone, take the battery out, boot the device into
ERROR: fastboot mode, plug in the phone, and start this script again.
ERROR: (To get to fastboot mode, press Volume-Down and Power until the)
ERROR: (Fairphone logo appears.)
I managed to enter recovery mode (not TWRP) and according to that, my phone was still stuck with Fairphone OS 19.11.2. So I tried to reapply this system with a manual update via fastboot, downloaded the 19.11.2. ZIP files etc. but again, I can’t get past that point:
Sending ‘modem’ (57585 KB) FAILED (Write to device failed in SendBuffer() (Unknown error))
fastboot: error: Command failed
ERROR: Could not flash the modem partition on device XXX.
Does anyone have an idea how to succesfully install either the old or the new OS from here on, preferably without losing my data?
Just a wild guess: does it improve when using a different data cable or usb port on your PC?
I think I remember earlier cases where users had problems on a USB 3 port but it worked with a USB 2 port (if your computer still has one that is).
Thank you! Actually it improved a little with a different cable, reaching one step further in the process. I already tried all 3 available USB ports, I think they are USB 3.0.
But still not finishing the update, unfortunately.
Thank you - also for linking to the other threads, which I hadn’t found yet!
Still not giving up and trying for the 100th time or so. Sometimes it gets to “system 3/4” and I get the feeling that it improves after waiting a little before the next try…
Unforturtnately, I only have another Windows 8.1 computer at hand right now, which doesn’t find the fastboot device. But I hope I can try with other computers within the next days.
Finally my phone updated to 21.05.0!
I used TWRP as explained here #twrpwoflashing to access my phone data on the computer and save it there. (Doesn’t have anything to do with the update, but at least I felt more comfortable trying again, knowing my data is save).
Then I tried to flash the images manually as linked above - that also failed, but also didn’t do any harm.
At a random attempt to reinstall 19.11.2 manually, that eventually worked.
So, my phone runs smoothly on 21.05.0 for 2 hours now, all data still there. If you experience the same problems: Really just keep trying, try different cables, USB ports, computers if available - it was worth the patience! Feels like having a brand new phone right now after 5 years FP2
Thank you for your support!