Seems, that you were right. The card seems to be broken. Isnāt a LOS problem. Tried to format the Card with Windows, Linux, Mac and another android device. Tried different tools like GParted, Partition Wizard, diskpart, Sd Formatter without effort.
I found this information at the SanDisk site.
Write protection errors occur when a flash drive detects a potential fault within itself. The drive will go into write-protected mode to prevent data loss. There is no method to fix this. To verify the issue is related to the flash drive and not your computer we recommend that you try plugging the USB drive into another port on your computer. You should also try the drive on another computer if possible.
Another effect i āsufferā since 2p181021: when on the move with energy saving location mode, the phone does not sleep anymore. So the battery drains quite a lot. Anyone else, or private specialty?
It was solved in the bootloader code for the Fairphone 2, so I think thereās nothing to solve in LineageOS itself.
In the bugtracker@borjan notes: "Solved with 18.09.2. Please note that you will have to use the manual archive to flash the bootloader partition - the update file does not provide the fix."
I just did the following for my LineageOS 15.1 to check whether it actually works (the bug didnāt bother me much, so I didnāt check until now), which it does, so ā¦
Boot the phone into Fastboot mode
Extract the manual archive fp2-gms-18.09.2-manual.zip from here to somewhere on your computer where you can find it
Open a cmd or shell
Go to the directory where you extracted the archive
Make sure fastboot works for you in this directory with fastboot devices
when I click on here I end up at Fairphone OS downloads for Fairphone 2. So you want me download FP2 - Binary images of Fairphone OS 18.09.2 what has the file name fp2-gms-18.09.2-manual.zip.
I sit behind a very slow internet connection currently. Would you mind to upload the emmc_appsboot.mbn, if this not the only file in the archive, either here in the bug report?
The 3.2.3-1 version that is available for some devices is a rebuild of version 3.2.3 but with an updated device/kernel tree.
I asked what was changed in the devices that got the -1 build but I only got vague answers from the TWRP maintainers. Iāve looked into the issue on the FP2 multiple hours trying different things that didnāt help at all unfortunately.
Basically I donāt know what part is broken so i canāt fix itā¦
Can you observe whether the workaround does not work when the phone is connected to charger/USB and/or Bluetooth is enabled?
Those circumstances had an impact on the workaround for other users.
These two problems are not normal.
If you happen to have fairphoneangels in your vicinity, they might be able to check whether your bottom module may be faulty by swapping it and seeing whether the battery drain persists.
Else ā¦ a general troubleshooting step with modules is to disassemble them (hereās a video), clean the contacts on the respective module and the core module with alcohol, and then re-assemble the module and try again.
Same workaround as for shutting down, else automatically rebooting into the recovery (without keeping Volume + pressed at reboot) will not work.
I canāt say anything about Dual-SIM, but I never lost proximity sensor calibration after a simple reboot.
General question: Did you upgrade an existing LineageOS 14.1 installation, or did you install LineageOS 15.1 from scratch (incl. wiping the phone)?
Thanks for taking the effort going through all the issues.
No, never during any charger/USB connect. Donāt use Bluetooth presently.
For my feeling it occurs purely random. Some times the workaround works works for ~10x in a row. Then I get even 2 reboots before successful shutdown.
Thanks for the detailed advice.
My understanding was that direct upgrade 14.1 ā 15.1 is not possible. (Was discussed in some forum or in some installation guide, I guess). So, wipe & from scratch.
ā¦