yashsingh1/xdaforums huggingface dataset:
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
The new kernel fixed the thermal throttling - it's much more aggressive now, and heating/shutdown doesn't seems to happen any more. Although I'm not sure how the config in KA relate with the actual thermal threshhold for throttling, as the CPU seems to top out at 57C which is not present in KA whatsoever
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
Battery temperature almost 43-48° always, charging or not. I experienced shutdown while charging and gaming together. Battery dies out quick so i am forced to go back to march 19 update with stock kernel.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] BetterBPrepared:
My battery died quickly as well with latest kernel. I had no shutdowns though. You are gonna be told not to play games while charging. It is not good for your battery.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
I don't know how you can have battery over 40 always. Here is my screenshot: battery - 22 degrees.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] user.system:
Might be a good idea to know the ambient room temperature, since that has quite a large impact on the cooling : )
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Wouldn't be related to kernel/rom though. :)
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Beepboop_blues:
These heating complaints will rise as the Indian summer temperature rises.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
[MENTION=5075064]optimumpro[/MENTION]: Hi bro, Need your technical help in understanding those android system alarms, so i can disable that particular thing.

Secondly, battery didn't made to 100%, charged over 2hr. (Snapshot attached)

Can you please provide technical details regarding these 2 observations. :) Thanks in advance :D
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] kunalvirk:
Hi Guys,

Since last time (november)....the forum has changed alot :D.....Good to see jaguar 8.1 for zuk z2....Can anyone please guide me that how can i upgrade to this rom but without root, currently i'm on viper os.

Thanks in advance!!! :)
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
As per my knowledge.

Pre-requisite - 1.7x baseband

Procedure/steps detailed on 1st page( skip the magisk part, for no root)
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] benedict97:
[MENTION=5075064]optimumpro[/MENTION], as many users have gapps running in their phones, the sot seams lower in their phones (including me). Could you try improving the battery performance in the next build?

There may be people who seek jaguar for security mostly ( me as one of them) as the phone seems fast enough in any xyz ROM. So, could you consider making a better battery profile with stock speed values. Or any suggestions are welcome.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
That's not telling you the reason(s) for alarms. All apps ask for different wakelocks and alarms. You need better battery stats that tells you which app is requesting things. Then you can deal with that app.

Battery stopping at 99% just requires a reboot and a few charging cycles.

Use aggressive doze.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Bro, that was a partial shot from BBS, the app name is "Android", so most probably system wakeups. That's why wanted your view, as apps have a very low count in here.

Attaching all snaps of that time, as will provide a better view.

Please provide your inputs. Thanks a lot.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Well. Android is system and Gapps are in system. There is nothing you could do about that, especially considering Oreo Gapps are not stable. Try a different version...

I might implement Alarm blocker and Wake blocker in April release, but most likely, by blocking those, you will break other system apps.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Ok bro, thank you :D :)
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
Ok indians probably will face heat issues coz of climate. After reverting back to march19 kernel i am getting 39°C battery temps. New kernel was amazing just battery was bad.

Can you please create a separate sound.img with only sound change.

Also i had my aggressive doze on when i was using new kernel but didn't benefit much. There was no specific app related battery issues coz i didnt download any new app after updating to new kernel.

P.S. the screenshot is of stock mar19 kernel and not new.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Yes standby has definitely decreased.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Beepboop_blues:
These kind of Temps will seriously degrade battery life. Just imagine being out in the Indian summer where temperature hovers over 35c. The phone would be unusable and reboot like crazy.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Datta258:
How to disable Double tap to wake

I couldn't find option to disable D2W. It would be better if there is option to disable it.

Also, double tap to sleep on status bar works only in small area of status bar, many a times notification panel/QS tiles gets pulled down accidentally while using D2S. It would be better if implementation is like AEX where it works anywhere on tapping in upper 1/3rd or half of screen (Just a suggestion).

Also with default configuration of performance governors, phone heats to 40-41C within 1-2 minutes of any activity. Especially in India where ambient temperatures are already high, it may heat further. I just applied AKT battery profiles to make it stay cool & battery temperature rarely goes beyond 35-36C. So happy now.

No random reboots, good performance & fairly stable ROM. I especially liked in app navigation speed (better than AEX especially on payTM).

Thanks for wonderful ROM.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Ayush Kumar Tarun:
Everyone with heating issue on latest kernel, try setting governor to interactive. Performance governor with Indian summers will make device a heater.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
What is akt. ? Kernel and rom has no heating issues, its our indian climate. I noticed the temperature mostly never went beyond 56°C and never below 35°C. Also please check the ss and reply (only someone who knows the answer)

And New kernel is perfect just the battery backup has deteriorated where i couldnt find any setting/governer to stop battery drain
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] hf958:
AKT stands for advanced kernel tweaks it's a set of profiles regarding performance and battery.

It on works on snap 820/821

Flash the zip via twrp and then

Type su in terminal emulator

Then type AKT all in caps

And then choose a profile according to your likes
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
I just did a few test round on the latest build but with complelely remove thermal throttling - the phone doesn't shutdown at extremely high temperature

So maybe the problem was not really related to thermals
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rehankumar:
Newest release with march 22 kernel is really good in terms of performance and thermals but battery life is quite bad, I get around 3-3.5 hrs of screen on time with light-mid use, I only use 5-6 apps except gapps, I used these apps and many more in zui and SOT was over 6 hrs(and no deep sleep issues), deep sleep is also quite random, it sometimes works and sometimes does not, aggressive doze does not help much.

Any help?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] The.Night.King:
Don't use akt. Keep the wakelocks enabled for better stability & functionality.

Your device will surely burn out soon.:laugh:

BTW your ss isn't loading.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
Okay After applying AKT, HEAT has drastically lowered, not affecting performance. Use ghost/hawk profiles. And thanks the forum for the support. We have together reached a milestone of 3000posts and 300pages. Cheers all

?? Why shouldn't i use AKT? Wakelocks re-enabled
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
I personally don't want to use any mods or modify anything in KA, until & unless suggested by OP.

Personal preference : Stock ROM + Stock Kernel = should be equal to bliss :p :D
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
it's not loading for you as well? that's weird but I don't know how to fix xda uploads
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] CakyT:
10. EMPTY SPACES in status bar beside extreme icons to the left and right.

Totally confirm this, is not annoying but if it could be fixed i will be please.

This is more a request: if is possibile to center the clock on the middle of the notification bar it would be awsome (I know that this is impossible in certain cases but if it's not i would like this option)

Good Job for the ROM

---------- Post added at 11:40 AM ---------- Previous post was at 11:39 AM ----------

Not working for me too
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] nksonfire:
Thanks for the wallpapers [MENTION=318761]night[/MENTION]_king
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] The.Night.King:
Didn't know that's. Thanks bro.

:cool: The performance and security themed wallpapers look better with hidden dock.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] jaswinprakash:
[MENTION=5075064]optimumpro[/MENTION] Will this kernel support overclocking of gpu and cpu????

---------- Post added at 12:33 PM ---------- Previous post was at 12:05 PM ----------

I tried vulkan rendering on other rom.. I think it only works with vulkan supported apps.. Eg:- i played nfs no limits after setting rendering to vulkan..no problem occurred.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] apollo3x:
Hey! No. 9 isn't a bug! That's a feature of android which was present even in nougat

---------- Post added at 02:34 PM ---------- Previous post was at 02:32 PM ----------

I disagree! This was not the case with Aex! Possible that the Dev did some tweaks there
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Jevi06:
lol omni switcher is a feature come with omni rom,it is easy to switch app to app then stock recents,you just need little time to use it .anyway it is not a bloat app cause you can disable it in settings,and if you want the dev throw all omni features,then why not we based Jaguar on aosp?

I am tired to stay z2 thread hearing someone **** Jaguar and other guy **** the one who **** Jaguar.

Keep away from it , concentrate on security and performance...
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] wonderboyskvj:
i am getting corrupt zip file error while flashing. What should i do?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Elton889:
I've charged to 95% and this is my sot. And install time and uninstall is fast for me, I don't know maybe because ro.secure is set to 0. I like to have all essential features jaguar N (power to enable flashlight and other things) to get ported to Oreo.

will boost framework reduce battery backup, cause the ROM is already snappy.

Thanks for for work Op!, had difficulties in beginning once sorted out turns out to be the best one:victory:

Looking forward to seeing more of your works!
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] luws:
looking forward to try this! i'll do in the next release.

suggestion, if i may: less frequent sound notifications... maybe wakelock/alarms blocker would be nice too (Screw'd rom has this feature)...

Thanks a lot to the dev!
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] The.Night.King:
Really? What a useless feature.:laugh:

I'm not saying its meant to be a bloat app, its just that no one uses it, at least I've never heard anyone using it and BTW you CANT DISABLE it in the settings.:(

Don't know why you were talking about **** while replying me, I'm no way related to such practices. I'm generally peaceful.

Oh, good.

Did it improve the graphics of the game?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] apollo3x:
Well yeah it's useless and annoying ?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Many camera apps work fine with Jaguar O, including builtin camera. Try to clear dalivik/cache.

Both wakelock blocker and alarm blocker were responsible for extra battery drain in Jaguar N. You can block things fine, but they try to wake persistently wasting battery.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Omni delta has been removed. And by the way, Omni update interface was removed in the first release. OmniSwitch and Omnigears are useful apps with many features. The last one is also an interface for coming feature implementations.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Ayush Kumar Tarun:
Hey, did you see the boot animation I posted on Jaguar N thread?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Ayush Kumar Tarun:
My jaguar bootanimation

Here I post it again; I posted on jaguar N thread but seems not much people visit it now. I am sure you all will like it.

Credits :UZe, Goose247
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] bit_creepy:
Does anyone know where I can find the latest gcam apk that's compatible with this ROM please? Google search returns so many different variants :eek:
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] The.Night.King:
Omni gears, omni jaws these are useful I know, but omniswitch? Does anybody use it? OK, let it remain.

What about default music player & browser, thought about removing them? Just like Jag N, user chooses what they'll use and no stock apps of these genre.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Chromium is removed too.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Jevi06:
Why no body standout to say that remove slim recents when Jaguar N........

---------- Post added at 04:26 AM ---------- Previous post was at 04:15 AM ----------

How to use this ,is it flushable?
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] The.Night.King:
Great & don't forget omni wallpapers.

Well, when I joined Jaguar thread, Jaguar was long released and already rock stable so I didn't want to intervene, but that's not the main reason, slim recents don't waste space in the app drawer like omni switch.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Beepboop_blues:
Not just the climate but the internal and external design of the phone itself. The battery's position over the soc does not help. Plus the glass back can not distribute heat as effectively as metal phones.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Jaguar Mar 19 + kernel Mar 22

[MENTION=7262081]kashyapp[/MENTION] [MENTION=6224450]apollo3x[/MENTION] [MENTION=6927784]metodding[/MENTION]

Known Bugs

1. Wifi - not connecting most of the times( might be related to different frequencies but didn't faced this issue earlier)

[ if SSID hidden, not able to connect in Airplane Mode ]

2. ‎Sim Toggle not working

Good things

1. Battery Backup - Good standby & 5 hr+ SOT (On an average, rest depends on usage) - On latest kernel standby has decreased.

2. ‎Good amount of customizations.

3. ‎Fluid Speedy UI/Navigation.

4. ‎Focus on security.

5. ‎Antutu testing success, including stress tests(Snaps attached)

6. ‎If you face any issue & have a viable fix, OP will certainly have a look & fix it :D i.e. "Genuine issues/questions/feedback/etc." are taken in a positive spirit in Jaguar family.

** & VoLTE doesn't work -> sarcastic **

Others:

1. Deep Sleep - Apps easily mess with this functionality but I personally feel, this needs investigation by everyone in Jaguar Family :)

2. ‎Removal of wakelocks - Under Radar

//All of these are my personal observations/opinion. Please skip if it doesn't help you in any way.

[MENTION=5075064]optimumpro[/MENTION]: Bro, can you please pick the known mentioned issues first & after that new features. Personal request :D :).
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] benedict97:
not much difference bro using aggressive doze and even running at stock frequencies, its well below 5h sot. kernel perfect in performance but not good in battery backup.

as many users reported, just a battery backup improvement and everything is super cool
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] qazed102:
Can you improve sound quality by replacing audio driver to wcd9335 which our CPU is using?

You are using wcd9330 one.

Thanks
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
After removing the 2 thermal-engine.conf files and rely only on intellithermal for thermal throttling control, finally got some good result

I had took a fair amount of screenshot recording performance, thermals, batterylife and cpu/gpu frequencies under some extremely heavy load (PUBG mobile at the maximum graphical settings, fps cap at 40 for anyone interested) and there's no crash, no shutdown, performance held up very nicely although 90C is pretty toasty. I tried editing the thermal engine conf in the past to this level and got similar thermals, so definitely something's working. In case xda screenshots are not loading (most likely due to the chinese in the file name), here're those uploaded to imgur

Still have no idea how previous builds got so bad shutdowns though
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] RedBody_90sJam:
Bro.. English version of Pubg is already released in play store..

I can't play at HD though.. lot of stutters..
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
[MENTION=5075064]optimumpro[/MENTION] what is the average single charge sot u r getting bro? I wanna know coz maybe the heated battery is causing the drain. Please share battery images.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
the english version is not up-to-date though, and the anti-cheat is not as good as chinese version. Some say it also not as optimized as the chinese version also, and a shooter doesn't have much of a language barrier when you actually play it

On the tested match I didn't face much stutters or at all, even with fps cap raised to 40. After this I would just turn down to 30fps low setting though to reduce heat and save battery
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
You shouldn't be allowing 92 degrees for cpu.

You don't have to use performance governor all the time.

No wifi issue here.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
[MENTION=5232381]pipyakas[/MENTION] OmGg 92°C, reach 100°C and you can start boiling water. ???
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
Just to see if the whole "your phone shutdown when battery reach 65C and cpu reach 90C" is possible

So no, it's not thermal related and the way thermal is handle in jaguar is very confusing. Also, at this point I don't know if leaving voltage control is beneficial, and the latest AR kernel claims to have undervolted successfully
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Bro, I am not sure, is it about diff channel/frequencies/hidden ssid or something but sometimes all other devices are able to connect to wifi but not Jaguar Z2 plus.

In Airplane mode, 100% replication of the issue + 1 more user confirmed the same.

As always, if its not reproducible at your end, we can skip but it happens here :) //In case, able to provide concrete logs/evidences will share.

Thank you.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
[MENTION=5075064]optimumpro[/MENTION]: Just to show, what happens. Snapshots attached of both, when normal & when on airplane mode. Took just now.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Shutdown is set at much higher temperature. And it is thermal related. Antutu stress test can get your CPU to 110 within 20 seconds without thermal protection. The problem was that intellithermal was interfering with other thermal settings in kernel: they basically didn't work, except for vdd restriction. If you used vdd restriction, which nobody does, your phone wouldn't have shut down even on the previous kernel.

Instead of setting the temperature to 90 degrees, you should play with temperature hysteresis: the lower the number, the more aggressive the changes become.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Bro as mentioned, SOT/standby has decreased a lot with new kernel, rest all is working fine. Device is usually hotter while basic browsing/apps etc.

//This is 1st time I am noticing this behaviour on Jaguar, as I have always said irrespective of deep sleep, battery back up is awesome but with new kernel 1 good thing seems to be impacted. A lot of users are observing the same.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] pipyakas:
But the shutdowns I got before was with lower temps than this, so something's off. I'll just leave everything to default from now on
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] Kham123:
For those who are facing low SOT after flashing new kernel try wiping dalvik cache and normal cache from recovery when phone is about optimal charge level (90%) and let it settle for some time my sot is back to normal now (7+hr) after flashing new kernel it was even below 4 hrs !

Hope it helps !
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Though, this was performed twice, 1st after flashing kernel, 2nd after magisk, will give it 1 more try.

Also, device warming up than usual on charging + normal usage.

[MENTION=5075064]optimumpro[/MENTION]: bro, can you provide image file of last kernel, only the image file, dont want to flash rom+gapps again. Thank you.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] sumanth111:
[MENTION=4802937]rocky459[/MENTION] agree with u.. device heating up more than usual... also videos taken through camera seem kinda dark
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
Preview of April release changes:

1. Appops with autostart configurations

2. Settings to disallow background access per app for

Clipboard; Audio recording, Sensors, Location

3. Alarm blocker

4. Wakelock blocker

5. Sound gain control in kernel

6. Disable/Enable touch boost

7. Option to configure wakeup on charger

8. Fixed thermal drivers

9. Back to default Impulse governor

10. Add system event service

11. Configure autostart for media player events

12. Add A2DP and wired headset event handling
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rocky459:
Camera usage is minimal, so not sure but there's something with temps unusual. Jaguar was all cool speedy, no heating, after last kernel flash, system is more stable but its heating a lot & might be related to low battery backup too.

Nevertheless, its not impacting performance but yeah our ROM should be best on all fronts \m/ :)

---------- Post added at 07:24 PM ---------- Previous post was at 07:22 PM ----------

Boom Boom ??
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] optimumpro:
No changes in camera. Change to a different camera app

I might go back to 2.1A charging.

To get older kernel, you can extract boot.img from the rom zip. But you won't be protected on stress. Keep in mind, when I ran antutu stress test, CPU temeperature went to 100 degrees on old kernel. I don't recommend using that.
[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] guyz_ahead:
Okay guys, here is something you all have been waiting for. I have found a better solution to battery and heating problems.

Follow:

1)Start aggressive doze

2)set little cpu to powersave and big to performance.

3)disable input boost cpu

4)use vdd Restriction as thermal driver

5)set frequency throttle to 50°C

6)disable background check of all apps from dev options.

After all this my battery drastically improved got 5hrs SOT with 3hrs 6 minutes of continuous combat gaming. I didnt charge in the meanwhile. I hope this helps everyone

[MENTION=5075064]optimumpro[/MENTION] please put option to control battery amp in kernel manually. I like 2.4a so if you go back to 2.1a its going to affect some people. If possible please set a manual option.