You should install either retapac or retail stock.Thank you for your consideration. If I were you, I would respond in the same way. Sorry asking an impossible request.
BTW, someone out there have experience install different type of stock? I mean, what happens if I install reteu stock, for example, to my XT-1797 (retapac). This might break my phone into brick state?
I want to ask before I might damage my montana.
Waiting for your experience.
Edit: Just say it is a stupid idea is okay. LoL.
Why are you using TWRP in the first place? The only supported recovery is LineageOS recovery - TWRP can cause problems in Android 10 and aboveHey guys!
Facing some problems and need your help quite urgently...
Since the last ota update trebuchet crashed several times, but started running right away. Last night the phone shut down completely. When I restarted it in the morning, there was only some strange notification that offered to reset to factory settings. This didn't work, too.
All attempts to restore backups failed. The following error was shown: "Error opening: '/data/system/packages.list' (no such file or directory)"
I've checked via TWRP, the file is there...
My last attempts produced "extractTarFork() process ended with ERROR: 225"
Thanks in advance!
Did you perform a factory reset in LineageOS recovery?The ROM is not working on my device model XT1791
First time boot I tried to do it without wiping the default factory update to see what would happen. After some time it showed an encrypting screen that lasted for like 10-20 minutes, then it went back to the boot animation and didn't do anything else
Second time I wiped the data like I'm supposed to and tried booting, it did nothing for like an hour, just on the boot animation
Thanks. Wasn't aware of this.
You have no choice but to factory reset. Make sure you have a backup of EFS and Persist as well, just in case you lose IMEI. Also, the wiki contains clear instructions on how to install the ROM, so make sure you follow them.
Did you lose your IMEI? If not then there isn't a problem, you can back it up now.
On LineageOS you should check /mnt/vendor/persist.Hello montana owners,
I have a "half-broken" montana (XT1797, RETAPAC). I know I was silly because I did not backup /persist and EFS. Before totally give up about my montana, I want to know what happened to my phone.
The situation is as follows:
When go back to the latest stock ROM, I can see the baseband (ends with the letter 'u'). But IMEI=0, ofc no communication with SIM is possible. Then, came back to custom ROM, LOS18.1. Under this custom ROM I can see the baseband (the same as that in stock ROM but the last letter changed to 'R'). Surprisingly, I can see IMEIs. Yes, I can use SIM, but only with 3G. It does not try to receive LTE signals. So I call my montana "half-broken". I checked /persist folder. It exists but EMPTY; No file there.
I tried erase modemst1/2 approach without success. First of all why custom ROM can get correct IMEIs with empty /persist?
I do not expect recover my montana. I want to know what is the real reason why my montana is not fully functional. Any suggestion to analyze my montana is appreciated.
Would you mind trying to flash stock 7.1 (with exception of bootloader and gpt) and erasing modemst, and then applying the OTA updates?
If possible I will. However, I only find 8.1.0 Stock ROM for RETAPAC. Yes, I could find stock 7.1 for RETAIL. But when I tried, I found that baseband is unknown at that time.
I don't recall the details, but I think it was when I first switched from 17.1 lineage with TWRP, to 18.1 with Lineage recovery, that the phone would restart to the PIN entry screen but would not accept my PIN. In the end after trying various workarounds found online, I had to wipe the phone and start from zero. I seem to recall others having a similar issue, maybe discussed earlier in this thread. So definitely back up as much as you can preferably manually to be sure (seedvault unfortunately excludes a lot for me at least), and I think somewhere I saw someone suggest removing the PIN and fingerprint lock before you do the upgrade, but then someone earlier in this chain seems to say they had the same issue even having done that.
#include <std_disclaimer.h> /* * Your warranty is now void. * * We are not responsible for bricked devices, dead SD cards, * thermonuclear war, or you getting fired because the alarm app failed. Please * do some research if you have any concerns about features included in this ROM * before flashing it! YOU are choosing to make these modifications, and if * you point the finger at us for messing up your device, we will laugh at you. * */
What is your-- LineageOS version: LineageOS Download url: Gapps version: Did you-- wipe: restore with titanium backup: reboot after having the issue: Are you using-- a task killer: a non-stock kernel: other modifications: Provide any additional information (observations/frequency of problem/last version it worked on/etc) as needed:
2021-04-08: Initial 18.1 build. 2020-10-13: Initial release.