yashsingh1/xdaforums huggingface dataset:
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] donjoe0:
Oh I just meant the included security improvements in just switching to a newer build based on a newer Android, not looking for active maintenance. If I wanted to really benefit from active maintenance, like for a good 2 years or so, I'd just have to get a much newer phone.

Hmm, that sounds like a downgrade. I'm currently getting >9.5h SOT, >47h per charge according to AccuBattery. It depends a lot on how each device was treated, we can't really compare blindly like this. Maybe if you knew the SOT/Total numbers for 15.1 as well, on the same physical device, otherwise there isn't much of a comparison to be made.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] eried1:
18.1 works OK for me. I think it's Magisk 25.2 that makes it sluggish sometimes.

For battery 18.1 is possibly the best. 17 was reportedly bad.

How did you measure the battery detoriation by the way?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] donjoe0:
AccuBattery shows it on the Battery Health tab, after seeing at least 1 full charge from as low as possible up to 100% (app has to be running while you charge). I think it tracks the charging current and integrates how many mAh you put in vs. what % you gained, then extrapolates that to 100% and tells you how many mAh you probably have (left). Also keeps a long-term plot of all the occasions when you did these full charge episodes, so you can see how the degradation is trending (normally for max. battery health you should be staying as far away from 0% or 100% as possible at all times, like ideally using the phone only between 30% and 70%, or go a bit wider depending on your life requirements - I've been doing only 25-75 since the pandemic).
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Tahir Baig:
So far soo damn good. The build feels smooth and fast as always.

However, I do not get calls over LTE (Volte). When mobile data is on and a call is made, it shifts to 3g and data connection is lost.

Does anyone face this?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Is it possible to dirty flash LOS official 18.1 over the latest LOS official 17.1?

My data partition is ext4
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] simbanono:
Better than android 10, seems to have better battery life
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Bipo:
Thanks! Although aren't all phones running the official ROM before the first custom ROM has been flashed?

Who is the warning "ROM Firmware Required" intended for?

edit: it says I'm on BL: C0.00 (2017.04.04)

I guess BL is for bootloader? I don't know where to find the firmware version
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] comunity:
Does anybody know what is the difference between the standard TWRP 3.4 and recovery that is suggested to be flashed during the clean 11 flash? Maybe a couple of screenshots of this LOS recovery to what is it? ;)
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] garvit girotra:
@mikeioannina does dsu works in p2 as seeing android gsi on dsu loader in developer option did you enabled the system dynamic partition.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] matias49:
Maybe. Maybe not. Better be sure to add it as a requirement.

As for to check the firmware version, you might have found it. Because I have no idea how to find it :D

Pictures I found on a search might be outdated. So I can't say. From an XDA content, it seems the options are quite limited : https://www.xda-developers.com/lineageos-18-1-review/

Thing is TWRP isn't supported anymore for our device (and the recommended version isn't the latest TWRP available). We can still use it, but issues will not be fixed.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Tahir Baig:
How do we get digital wellbeing on this rom? Mind the gapps package for android 11 does not have it by default.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] matias49:
There is two OpenGapps packages for Android 11, wich includes the digital wellbeing : https://sourceforge.net/projects/opengapps/files/arm64/test/20210513/

What is included in Opengapps packages : https://github.com/opengapps/opengapps/wiki/Package-Comparison

As these are test builds, use them at your own risk
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] filipemc:
Help! I was with Lineage 16 (Android 9). I cleaned up, install Lineage 18 (Android 11) and Nikgapps. The device turned on with old settings. I clicked on restore settings, the device was restarted with an error in the Android settings. I cannot change it to enable USB debugging again to reinstall the system. How to make?

If there was a way to access the twrp through the device, but only the option on, off and code appears...
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] matias49:
There was always one : Volume Up + Volume Down + Power (yes, all 3 buttons on the right side)

Info about kuntao | LineageOS Wiki

wiki.lineageos.org
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] filipemc:
I managed to solve
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mahmutpekkara:
You should explain then. Maybe in the future someone will have the exact same issue.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Has not anybody tested dirty flashing this ROM over the official 17.1?

(I have not the required space for a data backup to test it myself)
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] robuser007:
I did dirty flash: wipe cache and dalvik cache a few times. Works, but not my primary phone anymore.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Why not your primary phone anymore? Does it have any problem after dirty flashing 18.1 over 17.1?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
Have a look at https://nikgapps.com/downloads.html#downloads.

The Basic version contains wellbeing.

You may also and easier download your wanted version of weelbeing directly from the PlayStore.

Normally all applications contained in any version off the Gapps are available on the PlayStore.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] robuser007:
I can buy a new phone every 2 years billed by work, now I have 5g phone.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
I have strange problem related to backups. I have just moved to 18.1 from 17.1, at the point i do restore data from an old phone via the cloud/google drive no backups show up other than one for my Chromebook. I have looked in google drive and a P2 backup exists. I reinstalled 17.1 and still no sign of the backup. Any ideas?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
How stable is MindTheGapps? It seems Open Gapps is not available for A11 roms yet.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] 3volution3:
It works just fine.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
Been on this ROM 1 week now and not come across a single bug. Great job Mike, thanks very much.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
Will nikgapps work fine too?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
I don't see why not.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
Yes, it works fine.

I flashed this rom with NickGapps-core, the smallest package.

It will normally work with every NickGapps package.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
Hello, it seems I softbricked my device. I can only access the bootloader now. I can't access twrp with fastboot reboot recovery. The hardware buttons don't seem to work either.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
With your phone in bootlaoder mode, forget fastboot for a moment and try to act as follows :

disconnect your phone from your PC ;

swith off your phone ;

after a few seconds, push the tree buttons Volume Up - Volume Down and Power all together ;

your phone will normally boot in recovery mode.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
It doesn't work. It always goes straight to the bootloader.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
How did you softbrick it? How it happened?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
The last I did is wiped everything. I did check all the boxes under WIPE
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
Update: I finally got into twrp, and installed lineage 18.1 with nikgapps. My hardware buttons were really hard to work around.

Thanks for the support guys.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
Btw, so what happens to that lineageos 18.1 zip and nikgapps zip file that I just installed? Are they stored somewhere?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
I don't understand your question.

The zip files that were used for the installation have remained unchanged and are located where they were before the installation, unless you have made a mistake.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] amdyss:
How is your battery? I think mine battery has degradered after 3 years of usage. Whatever rom I installed, there is a drop of 12-15% in a space of 8 hr, with wifi on, rest of the modules are off. Any tips to determine, wether its battery or rom settings?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
Yes, strange question.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wodaaa:
I recommend this one https://xdaforums.com/t/where-to-buy-a-5100mah-real-battery-replacement.4129483/#post-84579935

the capacity fluctuates around 5000mAh and the replacement is quite simple ...
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
I cannot seem to find them. Were they deleted automatically?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Just dirty flashed today's build over the last 17.1. It went normally without any problem. Thanks a lot Mike!
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] utwer:
Samsung m31 battery same as for p2
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wodaaa:
with a dirty flash you added MindTheGapps?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Msharu73:
Hi Mike,

Many thanks for this ROM. All things work great! But Poweroff Alarm (Alarm set at sleep time does not wake Lenovo P2 in morning. I switch off my P2 at night) is not working for me. Anybody else got this problem too?? Also Quick Tiles Drop-down Setting button crashes when touched. Please check and help me with solution.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
Just something I've encountered, after starting up the phone from a shutdown, the battery icon and quick settings were nowhere to be found. It then restarted itself twice then it went back to normal. I did update to the newest build last night, dunno if it is related to that.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
I don't have Gapps, and didn't have in the past.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] amdyss:
Can anybody check if Google Photos work for you? For me install from google store or from apk its the same. Installing takes ages and when it opens, there is no response. Every other app works fine - only photos. Strange.

Just to mention - I did a clean install, without restoring a backup from a cloud.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] sprite16:
Same problem for me, it's happend only one time, after restart.

For me, Google Foto works fine.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
Hello Mike.

Many Thanks for LineageOS 18.1 for our Lenovo P2 Kuntao. It's working very fine.

I'm encountering only one problem which is not due to the rom.

myVOO, the application of my Internet-TV-Phone provider refuses to be installed arging that my phone is rooted although it's not the case.

myVOO considers my phone as rooted simply because I am using a custom rom.

But what is very strange is that it happens only with rom based on LineageOS ans not with those directly based on AOSP as Havoc, Fluid and the others which I tried.

For two weeks now, I have been using your rom as a daily driver and except for unforeseen circumstances it will be the case until the end of this rom.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
This happened again today.

And is calling broken in this build? The phone app doesn't seem to work with calls.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Screen Cast doesn't work in 18.1 20210613.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
I don't have any problem with phone calls.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
This ROM is still rock solid for me.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] 3volution3:
There isn't any 11 ROM for kuntao with working cast. No one has figured out a fix for it yet.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] church_foster:
You use MindTheGapps?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
No, I don't have any type of Gapps.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] pirogof:
Hi, I installed NikGapps, and so far only problem is lack of G Pay app, and store says unavailable in my country which is not the case.

About LOS 18.1 - I'm unable to set screen lock. Tried both releases, all options.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] amdyss:
I was posting about Google photos app that didnt work for me. It was installing couple of minutes, and was crashing. It was due to faulty micro SD card that I had and it was configured as an internal memory. After removing the SD everything is ok 🙂
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
I have seen a couple of posts regarding 'cast'. I am on 6th June release. I have tested cast both by casting my screen, and by using bbc iplayer to cast a series (I watched the lot 6 episodes). I can confirm that cast works perfectly (it was casted to a gen1 chromecast). I have the P2a42. I did a clean install even formatting system. I have no root/magisk. I used the recommended recovery image (lineage not twrp) and also flashed the recommended gapps.

After a week of use so far I have found no issues related to anything including: making and receiving phones calls, google photos, whatasapp, all of which seem to function perfectly. (Note: i have not tested video calls in whatsapp only voice and messages.) The only issue I had was at install, I could not 'see' my google backup even though it was there, so have lost call logs and old messages.

So many thanks Mike for an excellent job and all your hard work.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] 3volution3:
The cast we're talking about is the android built-in cast that shows everything happening in your screen. It doesn't affect apps with their own private cast functionality, because those simply require a network connection to work.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] arto_73:
Thanks Mike!!!

Installed after full wipe. Firmware + NikGapps+NikAddon(SetupWizard)

Everything is working!!!

It's sad that there is no "network device name" in the Developer Options.

I guess this is a features of Android 11.

UPDATE: Changing the device name in "About Phone" changed the network name of the device.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Jerghal:
Flashed it from TWRP. Seems to be working well at the moment. The only thing I noticed is that the ringtone when it plays when being called is stuttering. When you are in the menu to select the ringtone it plays normally...
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Msharu73:
Hi numenory, is Poweroff Alarm (the Alarm which is set at sleep time to wake Lenovo P2 in morning for ringing Alarm. I switch off my P2 at night) working for you?? Also for me, Quick Tiles Drop-down Setting button crashes when touched. Please check and inform. Thanks.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
Quick tiles setting button works ok for me.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] zockermatrix:
Hi, I like the new customized Android version very much and it works really great.

Btw kudos to you Mike for your support and hard work.

I have a very important question. I have been a new prepaid Telekom user from Germany for 1 month and would like to use VoLTE, as this is included in my tariff. Unfortunately, this does not work with the last Android Nougat Original Firmware, nor with this Custom Rom. I have also made all specific settings, such as activating the VoLTE marking, adjusted Apn settings, etc.

Is VoLTE really only available in India for this device?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
I have just done a OTA updae to latest build and phone was in a boot loop and now booted into recovery mode.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] en666:
Lenovo p2c72, twrp 3.5.1, magisk 23, ext4 partitions, pin unlocked, updated to 18.1 2021-06-20 with the updater app. Everything smooth. Fantastic 18.1 ROM, thanks a lot Mike.

High battery consumption in 17.1 forced me to go to Nova launcher to save a little bit more of juice. With 18.1 it's now a couple of days I am back to Trebuchet, it seems it is working just fine, no major battery drain so far.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
The casts I was talking about were both the what is happening on your screen and app casting. Both work as described in my post.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
I must admit I have never used an alarm when phone is switched off, but I have tested and it does not work for me. I also tried installing the google clock from the play store which also did not work. I do have a pin lock set on boot. I set the alarm for about 8 minutes from shutdown.

With regard to Quick Tiles, I have had no issues.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] 3volution3:
Lucky you. Not all of us get to have a working cast. I wish it worked for me. I have no idea why it would work on some and not in others. Maybe your TV has a different version of the cast protocol or maybe you installed something that replaces the default cast that comes with the ROM. Please let us know if you did something to get it working. We would appreciate it :)
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
I have not installed anything additional, nor have I rooted. My original post details the 18.1 version etc and how I installed the rom. I am using a Google Chromecast gen1 plugged into an hdmi as per original post. When I get chance I will try with a later gen chromecast, but I do not own one, so this will only be when I mange to visit a friend that has one.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] 3volution3:
Ah you use chromecast. The one that doesn't work is not chromecast. It's called miracast I think. You don't need any hdmi adapter or anything like that. It connects directly (or through the router) from your phone/laptop wifi to your TV wifi.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
I have heard of but have never used a miracast and I believe they use a different protocol to the proprietary chromecasts. TVs such as sony (probably not all models) include built in google chromecast, again, I do not have one but know somebody with one and will test when i see him. It does not surprise me that miracast does not work. I also have a hisense tv, which i can send youtube to directly from my phone but nothing else, this was the same on 17.1, I do not know what protocol/system it uses, I have not looked in to it. If the problem is the miracast I would suggest a possible solution of replacing with a chromecast gen 3, which in the uk at least are available for £20, again I have not tested a gen 3.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] hnsaba:
Miracast is the protocol's name. In 17.1 I could cast my phone's screen to a LG TV, now with 18.1 it stops in the initial connecting step.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
Arrr good luck, apologies for the pointless reply, just interested. Is it affecting all android 11 custom roms or just just the P2 custom ones and is it an issue with Android 11 (non custom oem roms) generally?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Rooster#1:
My phone is on stock android 7... can i install this now, or will it need another rom first ?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] numenory:
Number of years since I did this, but I started with android 7 and it works fine. Follow the instructions at the start of page 1 of the thread. The first step if you haven't is unlocking the bootloader, this used to take about 2 weeks from memory which is a Lenovo limitation, you request it, and then it counts down the days.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] itso85:
So far so good! Dirty flashed it as a twrp sideload(wiped dalvic and cache only), then flashed the latest magisk.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
I'm getting video sound stuttering that goes away with a reboot but keeps coming back.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] en666:
enovo p2c72, twrp 3.5.1, magisk 23, ext4 partitions, pin unlocked, updated to 18.1 2021-06-27 with the updater app. Everything smooth. Fantastic 18.1 ROM, thanks a lot Mike.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] mahmutpekkara:
Installed with full clean format with lineage os recovery, there is no problem so far! Excellent work @mikeioannina and the all other respectful devs! Even audio cracking bug is gone! Only minor issue is phone not automaticly waking up for alarm when it is off.

Edit: Just remembered there was an issue when you first setup the phone, google first setup app crashed and phone freezed. I forcly closed phone (hold power button for 10 seconds) , rebooted and problem is gone. I suppose this problem was coming from indicated gaaps. Maybe we need updated or other gaaps.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
Deleted post
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] PhilTruc:
I followed the advice. Good news is battery is easy to replace, a few screws and no glue. Bad news is battery capacity is 2500mAh, physical size a bit smaller than original.

Better to buy an original, cost saving is not worth the low autonomy. I will replace again...

Apart of that, Los 18.1 is smooth as silk.

Thanks a lot.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] amdyss:
Is there any chance to get the original battery?
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] wodaaa:
About a year ago I was buying from this seller and the size and weight (71g) were close to the original. After measuring, the application and the ammeter came out about 5000mAh.

maybe that's the solution to your problem

The problem is that the original is not available, there are only Chinese replacements with a smaller capacity
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] ShandyXDA:
My lenovo p2 stuck on boot. My phone was on charge, suddenly I found my phone had been trying to reboot automatically but never it could. Stuck on boot logo.

I can't switch it off.

Can't access recovery in anyway.

Only accessible is fastboot menu(fastboot command via pc also).

Using TWRP recovery and LOS 18.1 - 27.06.2021 build.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] Sutcliffe9:
Try pressing volume up and down at the same time together with power button and it should boot into twrp
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] ShandyXDA:
i tried so many times.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] cocopipou:
You have to press volume up, volume down and power button all together, and be holding the three buttons pressed till your phone vibrates. It can take 5 to 10 seconds, some time more.

Your phone should then normally boot into twrp.
[Lenovo P2 ROMs, Kernels, Recoveries, & Other Devel] ShandyXDA:
Thanks for your reply, I tried it but didn't work. In normal case after vibration shows the Lenovo boot logo and goes to recovery. But in my case it stuck on boot logo.