Hi Humblefox, I got through all the steps successfully to install the Feb, 22 - 13.5.332 ST cn rom. However, i can't upgrade to the latest 360 rom. I have set the WLAN (automatic downloading under wlan). I even tried running a VPN through Hong Kong unsuccessfully. Gave whatever permissions to the system service update app as well. I don't know why your getting the update & i'm not.Was able to retrieve the update after granting the permission under the Security app for WLAN for System Update. Received both .340 and .360. Apparently the default is for Mobile data to request the permission and not for WLAN, so it manually has to be toggled. Probably the #1 reason so many other Legion Duel 2 owner's are stuck on outdated firmware considering the Global rom doesn't have the Security app from what I remember. For future reference you can find the downloaded update after enabling hidden folders and searching your main local storage for the .zuiota directory. Please keep in mind the update is deleted after the phone restarts and boots/mounts the updated system; copying it for archival purposes to downloads or external storage is advised.
thanks. RE; fingerprint, i guess in my case i started with 137 ST Global rom, then inadvertantly tried to update to 188 CN rom via QFIL process. It resulted in what other members report, "hardware is not compatible" message. So then i used RSA to then reflash 188 CN ROM (noting i originally had the 137 global rom) & it accepted it !! Once i got 188 running, i went back through the QFIL for the A12 & success. Fingerprint sensor works perfectly obviously since its a CN rom. Then i think i used APK desktop website to download Google Services & sideload because the widget explained in the thread didn't do anything for me. It was a long road until i got all the apps i wanted. Still have a problem with the Android Auto. Currently cannot convert into a systems app. Failure on not enough space. Question, would i need to apply the updates incremently? And would i need to reload all my Google apps again? RSA cannot take a snapshot. Is there any other way for backup?@p_noch & @turbo30001
I think the updates aren't being received because of the serial on your device which registers as a Duel 2 not a Pro 2 with Lenovo's update server. I read that there is going to be a ZUI 14 (Android 13 update) for Pro 2, maybe they pulled the updates for the new release version?
As for the trouble you are both experiencing, it helps to read the thread fully to understand how the process of updating and region changing was figured out. @bukeyolacan was the main tester and discovered from another thread which partitions were necessary to preserve for the region change thanks to @mrgreapes (and can also apparently write mandarin to request help from those in china), whereas @&(*) mainly provided the resources, software + drivers, and support for it to be possible at first, and @HumbleFox ironed it all out with his clear instructions for the switch from Duel 2 to Pro 2 altogether. Keep in mind that there are still bugs between the two models that may not be resolved, like the fingerprint sensor, which only works with Pro 2 models after switching from ROW to CN at the moment. I've gathered the updates for you both and others who may be experiencing the same issue of downloading the final 12 build, which may or may not be possible with your Duel 2. Try them out with the link provided and click Download All at the top right corner of the drive link. Make sure you read the readme file provided for a clear understaning of how to apply the updates.
Thanks for the insight. Don't know why the iunlock site doesn't work. Even used a yahoo email address. Submit button just doesn't work.
Still no response from the iunlock site. I've looked at your alternative method & it still requires a sn.img download which to me when i try it gives me a file sn.img.crdownload 6kb. I can't take that the leap of faith on this file, otherwise the method seems easy enough to follow. FYI, i've now updated to the 380 rom. Is there any other way to root the zui12?
Everytime i access the partitions table via QFIL, i can't find those listed in the guide. Fpinfo & frp does not exist. However, i get frp & super at those addresses. I've opened the files in HxD & checked the address at 800, i have 00's when i expected my serial number.
No i haven't tried searching the other partitions. Thanks for the tip, i will start downlading & checking. Will take some time to complete. Yes, if i could get a copy of a SN.img with the serial & IMEI details in, i could replace this file with my serial & IMEI details. I assume this is what you mean by scrubbed.@turbo30001 ,
You're probably going to need a scrubbed SN.img. Have you tried to search for your serial # within other partitions? The problem is identifying every value that should be kept private and removed from an SN.img so that it doesn't create complications for the device.
Ok i've downloaded all the files & did a search. The file that came up is Logfs 0x0006A7CF & that has my serial number but given the names of the partition, i don't think the file is of any significance.No i haven't tried searching the other partitions. Thanks for the tip, i will start downlading & checking. Will take some time to complete. Yes, if i could get a copy of a SN.img with the serial & IMEI details in, i could replace this file with my serial & IMEI details. I assume this is what you mean by scrubbed.
I tried it a few times unsuccessfully. OTA Updates not recognized even after the suggested Shangai VPN. I didn't clear the cache but i will try after reading your followup. Problem is that my device is a Legion Dual 2 with the Legion 2 Pro ROM flashed so my serial number assigned probably doesn't work for the OTA updates. Are all SN.img files the same except for the IMEI & serial number? If so, all i would need is a copy & highlighted address section as i can enter my details.
Persist and modem need to be flashed from the previous build before first boot to the ZUI13 build. Were you running Global prior to upgrading (AliExpress version, which is a Pro 2 running the Duel 2 system)? Read through this post and follow the steps after you have extracted both modem and persist from the previous build you were running (no need to flash the whole previous build, just those two partitions).
I updated, had the global version and put the CN version. it is much better, with more functions, the security patch is more current.
Yes there is OTA updates available. You can follow the instructions that was posted here