yashsingh1/xdaforums huggingface dataset:
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] nozav:
I'm on updated 17.1 after a clean install. I think I only encountered the audio bug once since the 21/06 update.

I concur about battery life, it is definitely shorter than on LOS 16. I don't think it is linked to a battery drain when the phone is off, but rather to a faster discharge when in use. For example, if I stream video while plugged, the battery doesn't charge, it only stays at its current level. That was not the case before.

I tried to monitor battery usage and to change governor but it has not been really useful.

Other than that, the ROM is excellent. Many thanks again to Mike for his hard work for so long.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Din4564:
Maybe the GPay bug is related to

https://www.xda-developers.com/safetynet-hardware-attestation-hide-root-magisk/amp/

My safety net test failed! They're making it harder to hide root now! Will have to see what update magisk does
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] gianpaoloc:
Suggestions on how to update from a version of los 17.1 to the last one? May I update from settings, when los prompts that a new version is available or it is better to download the new release manually and to go from twrp? And do I have to format system and reinstall opengapps, also, or can I dirty install by simply installing the new zip from twrp without formatting? Suggestions welcome
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] nozav:
You should be able to update with the updater in settings without issue I think. No need to wipe and clean flash.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] PN27:
I just switched to LOS 17.1 and unfortunately, you can't watch a video. The problem is also with audio. But besides, this ROM is very OK.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blonderulez:
Just migrated from 16 to 17.1. Didn't see any issue except for 1 till now. I can't remove registered fingerprints. Is any one having the same problem? e.g. not able to remove 1 finger print?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] engibrahim.hd:
full screen

my mobile is alwys in full screen mode after upgrade from 16 to 17.1 any solution???
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mahmutpekkara:
Did a clean install, formatted /data ext4 to f2fs via required twrp and everthing seems perfect! Thanks Mike and other developers!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] slim71:
Anyone having a Miband 4? After the 21/6 update I suddenly have this strange problem where only the first message of a series is being shown on the smartwatch, while it was working well before.. tried re-paring phone and watch, restarting and resetting the watch, checked all notification-related settings....

could it be something on the new release? just to check that too...
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] neonxgenesis:
Dirty flashed from LOS 16 to 17.1, TWRP 3.3.1.1, GApps Nano:

Everything works fine except heavier battery drain which was not present in LOS 16 (especially during doze). From what I see in GSam Battery Monitor (and using Naptime), device rarely goes into deep doze e.g. overnight, it stays in light doze. E.g. last night charge went down from 70% (10pm) to 58% (6am). Rarely, it seems deep doze kicks in and then the battery drain "curve" stays totally flat (flat curves was normal in LOS16 overnight).

What I've tried so far with no effect:

1. clean davlik/cache

2. clean Play Store App cache & data (+the same for other GApps like Google Assistant), this has occasionally been the issue for battery drain in LOS16

3. check all apps for "battery optimization" (some do not allow optimization like "Download-Manager", "Googe Play Services", "Messages", "Shell" but most do),

4. disable background activity for some apps that seem to do a lot of background stuff (especially Samsung Health and Smart Home apps)

5. switch performance profile to "energy saving"

*UPDATE*

Battery drain works now. Als another User also reported, I realized that Clock did a Lot of wakelocks. Cleaned Cache and Data, setup wake timer New, now phone has almost No battery drain overnight + additionally stays in deep doze during day with Naptimes' "aggressive doze". Consumption during one day regular use is 25%, overnight is 2-3%

About issues that others report:

1. Green front camera: there is an inofficial LOS17.1 Google Cam app APK here in the forums, it has a toggle for "fix green images" that fixes that issue

2. Wifi/BT slow: cannot reproduce that, Wifi gets to around 70 MBits/s max here, even with BT enabled

3. Never experienced audio/video stuttering from the very beginning on
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] en666:
Here P2 (P2C72) moved on LOS17.1 from LOS16 using twrp3.3.1.1. Keeping P2 updated through the updater app and I am currently on 20200628.

All of the initial problem seem gone in my case, except for a massive battery drain, which I might have discovered something about: I have noticed that the Clock app drains quite a lot of current, even a good 20%. Mike, would this make sense?

I used to have this problem but went away with one of the latest versions. Try to switch off WiFi, data and restart the phone a few times. As soon as the phone allows you to interact after the reboot, start a video or play a music, after a while it should work.

It sounds weird! I have just tried to remove, add and remove again: everything worked (I then needed to reset all my banking apps that, realising fingerprints have changed, told me to reconfigure the credentials for security reasons.. :( )
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] suvam69:
Any issues about 4G network strength?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blonderulez:
I have a P2a42, maybe that causes the difference? When I remove a finger print, it asks confirmation an d then it get's grayed out. But when I go back 1 screen, it provides het the same number of finger prints as before and when I provide my password and go to the finger print screen, it is not longer grayed out. :confused:
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] P2.nl:
I am gonna sell my P2 for 45.00 euro [ ex. shipping cost ]

[IMG="Lenovo P2"]https://i.postimg.cc/1tfyn2fK/L2.jpg[/IMG]

For info, send a PM
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cool_nin:
Can anyone show me option to enable Bluetooth SBC SQ dual channel HD in this ROM?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Trance Paradox:
Clean installed Lineage Os 17.1 Version 2020-07-05 with TWRP 3.4 and gapps mini.

No bug found after almost 2 days of use.

Audio and video works perfectly.

No issues of significant Wifi speed dropping when bluetooth is ON.

Also my google pay working with root.

Now the issue

Launcher is crashing randomly. I have to switch to pixel launcher

Battery drain is very very noticeable. I tried out different modes. Firstly on balanced mode there is a lot of battery drain. But the experience is fluid and snappy. Also when i am using 4-5 apps. For example listening to music in vanced tube. While browsing social medias and texting in whatsapp the phone get warm to hold. This was never an issue in LOS 16. I tried efficiency mode still quite a battery drain but no such heating issue. In the power save mode the battery drain is ok but performance take a solid hit. Apps tend to hang and system response is very sluggish. However the idle battery drain is low about 1-2 percent at night(2PM to 9PM).
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] skylineww:
Hello Mike,

When I connect the phone to the car, the music does not play when I want to listen to music. Maybe a solution can be produced. Thanks for everything :) (sometimes it plays sometimes it doesn't)
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] sprite16:
Same problem here, connecting to the car with Bluetooth. The problem appears with OS version 28062020. Thanks

Trimis de pe al meu Lenovo P2a42 folosind Tapatalk
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Tahir Baig:
When bluetooth is connected, the WiFi speed drops soo low that videos start to buffer even on a 100mbps connection.

As soon as bluetooth is disconnected, the speed is back up instantly.

Please can this be fixed?

Thank you.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] TruShakur21:
how to turn off the vibration when unlocking with fp! :confused: that's the worst thing ever plaese any help.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] talukdar_rupam:
Download SetEdit from Playstore, inside the app Create New Setting, type "haptic_feedback_intensity" and then it will ask for a value, type 0 and you are done.

If you uninstall the app the vibration will be back to default value again.

---------- Post added at 11:19 AM ---------- Previous post was at 11:16 AM ----------

I have been using the Rom since its inception, just want to point out one bug that has been seeping through every new build; the Lockscreen after screen timeout does not work for any other minute, phone gets locked immediately.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] siemens_marolikar:
We didn't expect that much bugs from lineage os, this rom known for its stability and performance And Also Battery life but not in this case. sad for lineage os users. I hope further updates may fix those bugs
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blofse:
I'm trying to work out if this is an linageos problem, an android 10 problem making it difficult for Roms to work, or a lenovo p2 linageos thing.

Are other phones as unstable as my p2 now?

I still have the issue with judder on videos, audio drop outs, WiFi, much less battery, and problems and the stock camera.

All of which are very annoying and now I'm even going for the nuclear option of buying a new phone just to save myself!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] HkQc:
None of the problem you mentioned above for me.

I'm with the 28062020 build.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blofse:
What is your model of the P2? Do you have encryption enabled? What is your data partition formatted too? Which twrp version did you use? Did you wipe internal partition before formatting? What rom did you come from previously? I'm hopeful that one of these questions has a different answer to me which might help me resolve mine!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] HkQc:
- What is your model of the P2?

-- C2 version but flashed as A2 looooong time ago, like all of us I think :o

- Do you have encryption enabled?

-- Yes

- What is your data partition formatted too?

-- F2FS

-Which twrp version did you use?

-- 3.3.1.1

- Did you wipe internal partition before formatting?

-- No

- What rom did you come from previously?

-- I did a clean flash from MSM Extended 10 (Vladsor) to the Lineage 10 from 3 builds ago I think and I used the Lineage OTA ever since.

I can also say that I watched a lot of YouTube and use the Bluetooth link to my car daily without any issue also.

Hope that it helps you ;)
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blofse:
The only difference I see with that list is I am using ext4 for data, which might explain I guess. I'm getting desperate so I may reformat to that type of partition to see if it helps!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] gianpaoloc:
I have none of your problems, also, apart from a higher battery drain if compared with Los 16. All works smoothly including video, BT, WiFi, and camera. I have p2a42 and ext4 data partition. I come from Los 16 and did a clean install reformatting system and data before moving to Los 17. Since then I used ota updates.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cool_nin:
Does this ROM have Bluetooth SBC HD inbuilt?

I don't find the option.. But Bluetooth audio does sound great with this ROM.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] plkamil:
Sometimes I have a problem with the microphone during calls. Only a system restart solves the problem. Is there a solution to this?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
Is face unlock present ??
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
Should I do a factory reset or a just a clean flash while coming from havoc os3.4 as the installation suggests to do a factory reset but i used to clean flash the device before installing another rom.what should I do??
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] :
I think its problem with firmware

Older firmwares aren't supporting latest android 10 ROMs that much.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] anshdeep:
Same audio problem as in test build :(
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mikeioannina:
Not sure what is the audio problem, can you please post a few logcats when you have the issue? I've been using p2 daily for a month and I didn't reproduce this issue. I looked at https://gitlab.com/LineageOS/issues/android/-/issues/1844 but there doesn't seem to be anything relevant in logs, other than fingerprint service crashing
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] phenomenon2:
Reprogram ultimate power saving button?

I just installed lineageos 17.1 and it works great. I really like it. I was wondering if there is a way to use the sliding button on the left side of the phone and possibly reprogram it?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mikeioannina:
Not possible right now but there are some plans for that.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] phenomenon2:
Thanks. Anyways, the OS is awesome. It brought my phone back to life.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Tahir Baig:
Thanks for the awesome work!

I am on official LOS 16. How do I upgrade to LOS 17.1? Can u give some detailed steps please. I am Not familiar with the process. Thanks
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] P2.nl:
Place ROM & Gapps in your virtual SD

Reboot in Bootloader Mode

Go to "Recovery" (Vol +/Vol -) and confirm (power)

Wipe Data/Factory Reset

Wipe Dalvik cache

Install the ROM zip

DO NOT REBOOT

Install the Gapps zip

Reboot
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Mrinmay Medhi:
Audio output and video lagging problem is there.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
There's no system sound and YouTube Vanced is lagging
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
No audio or video problems on my phone. I did a clean install wiping everything.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
Even I clean flashed right now and installed magisk.on first boot there were audio problems but then after dirty flashing the ROM the audio problem disappeared. But the video stuttering problem still exists.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] aayush00002:
How do i flash using official twrp? I'm on havoc
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
Just clean flash and install lineage os.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Bipo:
Same problem with YouTube (using NewPipe app or a browser)

Also multimedia sound stopped working. I could listen to music at first, but not anymore, and reboot won't fix it.

Playing an mp4 file in VLC is fluid, not choppy, but no sound either

Calling works fine, as well as sound feedback from the system

Edit: I should have read the comments first, this is already widely reported.

I'd be happy to give logs. If you want them tell me how to proceed. I'm rooted.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Biradarkushal:
Facing the same problem.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mikeioannina:
https://wiki.lineageos.org/logcat.html
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] slim71:
Nevermind: I think it's just a WhatsApp problem about notifications grouping. In case anyone is experiencing the same problem, changing the MiBandage setting to "Show all notifications" has been a workaround for me
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Bipo:
I have been on this version of LOS since it came out.

Problems are not resolved and I'm starting to wonder if they ever will be.

This is of course NOT to blame the maintainer of the ROM. I'm very grateful for the job all the developers are doing for us.

But in a few days I'll go hiking and need the regular P2 battery life, so I'll be back on 16. And there are other bugs (no audio on some files, suddenly slow scrolling speed, finger unlock sometimes not working)

If you're on the verge of updating from LOS 16 to 17 consider if you really need it. I guess there's the security factor, but still. Honestly I don't think the upgrade is worth it.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blofse:
It's interesting. It feels like 30% of people are struggling with this, but the rest seem to be having a happy time on this rom. What rom did you come from? What data partition file format are you using?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Bipo:
I was on LOS 16. I tried briefly an android 10 ROM, Havoc I think. It didn't have as many issues.

But I did a clean install anyway. And again after a few updates, just to be sure.

I don't think I changed the file system on this phone, so whatever it came with.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] :
bug -

setting>system>backup(is on) the page is empty, cant be turn off
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Trance Paradox:
Which gcam version to use

I am getting crashes on this version GCam_5.1.018_by_SerJo87_1.6RC2_test4d_fixed.apk
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] melchiar:
Massive battery drain on latest Lineago Os build (release date 2020-07-05). Anyone else same issue?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] srijith.407:
How to get the stock app closing animation on 3rd party launcher. The stock app closing animation looks awesome but it works only on Trebuchet launcher (on nano gapps) or pixel launcher (stock gapps). Does any one know to get to enable this app closing animation on other launchers?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Bipo:
I figured I'd try f2fs to see if it fixes things, but I get a bootloop (I changed data and cache). I'm on a recent TWRP. Maybe the kernel needs to be updated ?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wodaaa:
I have the same problem

I need to set the energy management profile to be efficient so that everything goes smoothly, but then the battery lasts not all day
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] skylineww:
sound problem problem still persists (last update) :(
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cool_nin:
Ram management is not optimum on this ROM ( 21st June version).

The device constantly becomes sluggish with very minimal apps. Can this be improved please?

Otherwise the ROM is pretty stable with no issues at all.

Didn't update to higher versions as I see people complain about audio issues. Not sure if ram management is updated on latest version but audio is priority for me.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] en666:
Here P2 (P2C72) moved on LOS17.1 from LOS16 using twrp3.3.1.1. Keeping P2 updated through the updater app and I am currently on 20200712 (latest). Magisk and Magisk Manager on the latest versions.

As usual, a huge many thanks to Mike. This is just an update on the usage: no problems with audio, movies, NFC or the other mentioned problems. The only one remaining was the huge battery drain.

Based on only two battery charges with this latest LOS version, dark theme and battery restricting ALL the non strictly necessary apps, I have now reached a quite good 11-12 hours screen usage ( a lot of WhatsApp video call, vanced YouTube and PrimeVideo, all of them mostly in picture in picture mode while emailing and browsing)

Before last release and battery restricting apps, usage on screen was about 8 hours, so it's quite a good improvement that allows me to charge it not even every day.

In my case Battery drain time is always measured between 100% and 5% battery life. I am then using two different apps to monitor battery in details: AccuBattery and GsamBatteryMonitor. The second still reveals that LineageOS settings process drains more battery than everything else, including the software above mentioned and Android itself!

Have a long life and prosperity \\//_
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] plkamil:
Does anyone have a sound problem? When the sound is muted and I want to play a movie clip, the sound appears for a few milliseconds. Again, when the volume is low, the sound increases for a few milliseconds to the max and returns to normal.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] AhmedAli32:
Can't connect to my hidden wifi .. any solution?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] arcaneview:
for those that didn't switch yet

This rom is excellent, everything works well, I have not encountered any major bugs, not even minor to be honest. My suggestion would be to do a clean installation. I would even go further and suggest that before installing los17 flash again stock on your device.

I downloaded Deodexed_P2a42_S233_170404_ROW from xda. Don't do any login after installing this stock (it threw lots of errors, ignore it, once you get to "welcome" screen press power button and shut down your phone).

Boot into twrp, go to wipe and format data, next go to Advanced Wipe and check everything to wipe. Reboot.

Flash twrp suggested by OP, don't skip this step !

Then select “Advanced”, “ADB Sideload”, swipe to begin sideload (follow original lineageOS instructions).

Summarizing battery is better than on los16. Rom is more stable, faster and much much better. Tomorrow you'll get security updates for this month. There's no video or audio bug. Not after clean installation at least.

Take care, great job maintainers.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Mrinmay Medhi:
Basically you didn't do anything. You just flash stock rom and wipe it. So I don't think there would be any advantage of flashing a twrp rom wiping it.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wimmetje:
Rom works great :) smooth, long battery life and no problems so far.

The only problem I have is that I can't delete the fingerprints? Anyone got a solution for that

Regards wim
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] siemens_marolikar:
Audio video bug are still there ?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] SrivatsaNag:
What about Overnight drain ?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] arcaneview:
By doing it I fix one very important part, I'd even say crucial for essential working. But since you say that it didn't do anything there no point of mentioning it.

This rom works very well whoever say otherwise is not following original guidance. Do clean installation and you won't be disappointed. It's very smooth no bugs.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Mrinmay Medhi:
Battery drain problem has been gone with latest update 19 Jul. Not tested the overnight drain but SOT will be 12-14 hrs easily.

---------- Post added at 01:33 PM ---------- Previous post was at 01:31 PM ----------

Delete the fingerprint profile using twrp lockscreen data too.. then register it in your settings.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] arcaneview:
There's no audio/video bugs and battery drain is the same as in los16 if not lower, insignificant %.

Follows original guidance for installation.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] blofse:
It seems most of everyone else is not having problems. However I would guess about 20% of people are still having the issue. I've reinstalled a couple of times with no success, however I have not formatted the internal sd partition yet which is the last thing to try. To be fair, with later builds video struggles initially then it seems to wake up after about 20seconds. So the rom is usable for me but hopefully each week things improve!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wimmetje:
Thanks that worked!