So I hve been going nuts trying to figure out why my phone keeps rebooting. I'm in another country so getting a replacement isn't an option for me and it seems it hasn't helped some people anyways (After a while it comes back).
THe only constant I see is that the CPU usage after maybe 30 seconds after the phone comes on stays at 95-100% all the time. Only thing that makes sense is that the phone is shutting itself down before it melts down.
This kinda makes sense since it seems the more I try to do the more random the reboots become.....and battery life is beyond horrible. I did the steps to increase battery life and battery life is making this phone virtually unusable off AC power (EXample: Leaving from my Brother in laws apartment and travelling 10 floors down to my car results in 89% battery left. Phone is dead within the hour if i use it and 3 or 4 if leave it idling.
I tried killing all the tasks that te phone starts up with but nothing change the CPU usage. I thought maybe it was the kernel but I flashed the latest one from this thread: http://forum.xda-developers.com/show...RI+version+PRL [the undervolted version]. Not sure if that would help (THe info in this forums is so scattered and disorganized it makes my head spin.....and I'm a techie).
Also try flashing the combo package of the latest radio, PRI, NV etc and that doesn't work also....CPU usage is still through the roof.
I just got this a few days ago. I'm currently on:
HBoot 2.10 [s-off]
H/W 0004
Basband 2.15.00.11.19 [I was on this before I was rooted]
Kernel version 2.6.32.27-SBC-net-4.2.2-less-havs [email protected] #19 [Just flashed] ROM myn's Warm TwoPointTwo 9RLS 4)
Software: 3.3-.651.3
PRI Version: 1.90_0003
PRL Version: 60662
Can I get some help from people smarter then me. I'm at the end of my rope and I'm not convinced a handset swap is going to fix my issue esp. since this was BNIB straight from Sprint and other people who've had this issue and had a new phone seem to somehow have it later.
If i leave it alone it will reboot on its own eventually. If i switch from airport to turning on the cell data, reboot, turning on wifi......reboot, toggling 4g.......reboot, After a few web page searches......reboot, open up an application.....reboot.
This isn't temperature related as far as I can tell.....The app I have monitoring temp has seen this happen at 25 degrees and sometimes less.
PLEASE HELP
Ok.. firs tthings first..
when your phone is unstable and rebooting, dont use an undervolt kernel. Undervolt kernels provide less power to the CPU at set frequencies.
In my case, I discovered undervolting CAUSED reboots, because my phone couldnt handle anything under 950mv... there is such a range in the quality of the components that theres no way to always say yes, undervolting this much will work with every phone.
so 1: Use stock kernel ( for whatever rom your using.. also use a well established rom, not one of the 'hey, last night i got bored and made this' ones.. it may work, but it may be so buggy its what is causing your crash )
2: do a fresh install. run the phone with 0 apps added, see if it has the same issue. If it does, may be the phone itself. If it doesnt, its one of your apps.. install one at a time, and see if it improves.
and you made two posts why?
Didn't know they would move it. Posted in the wrong forum and they moved it as well. lOL. My bad.
I've been on a stock kernel up until I started trying different kernels. I will try the other one then.
My CPU usage is the problem I think. I have both memoryusage and system monitor and both report the same thing.....95-100% usage constantly. If I could resolve that then maybe my phone would work properly.
Didn't know they would move it. Posted in the wrong forum and they moved it as well. lOL. My bad.
I've been on a stock kernel up until I started trying different kernels. I will try the other one then.
My CPU usage is the problem I think. I have both memoryusage and system monitor and both report the same thing.....95-100% usage constantly. If I could resolve that then maybe my phone would work properly.
I'm a total n00b to the rooting scene - going on almost a week with my rooted DInc - so apologies if this has been addressed (I can't find where its really been addressed definitively). Since I rooted (and only since), I'm occasionally having random reboots while my phone is sitting inactive on my desk. I've only used Sense ROMs (Virtuous, WarmZ, Nil's Business), and they all seem to have it. I have Nil's on now (love it so far!), and for two days, I thought the issue had gone away, but today it has rebooted twice in short order (about 30 minutes apart).
Some things I've observed about this:
- I haven't had it reboot yet while I was using my phone - only while sitting inactive on my desk at work.
- I do have pretty poor signal strength in my office - at rest, it usually shows just a bar, if that.
- The wifi connection I have available is also wonky (router issue, I think); I don't use it (or even have it remembered) because it will connect, but continuously drops and reconnects over and over (not a phone specific issue, used to happen to my BB Curve as well).
This doesn't rise anywhere close to a dealbreaker for me, as it reboots quickly and everything seems to return to normal, but I wanted to ask if anyone had a suggestion to remedy the problem.
Could be a lot of different things. Are you also using custom kernels? Some people will get random reboots when they overclock their processor, but since you say it happens when the device is idle, that sounds unlikely. There was a generation of GB kernels that would cause random reboots if the wi-fi policy allowed the wi-fi to sleep. Switching the wi-fi sleep policy to "never" was the workaround for these, but you are using Froyo and I'm not sure if this same bug ever affected any Froyo kernels.
I know when I ran lou's kernel (don't remember which version) I had a few massive lag moments where the phone was insanely slow and also a couple of random reboots (once was idle and screen off, other was during a phone call).
I didn't continue to run it for those reasons, actually only ran it for 2 days.
You may have better luck just flashing a different kernel with the same ROM you're on, I've had good luck with chad's sense incredikernel (25plusv) - that is, if you're looking for a suggestion for a kernel to flash
Run fix permissions in ROM Manager too.
Sent from my ADR6300 using XDA Premium App
Hi, Android folks !
I just bought HTC Desire (seems like branded/locked by our local operator), rooted with Unrevoked, formatted 32GB SD card 1GB Ext3 + FAT (on SuSE Linux), and installed RC Mix S V1.4 (RCMixS_v1.4_A2SD+_BravoHboot).
System is very fast and stable, however, I have two major issues which render this phone almost unusable.
1) WiFi is not able to connect to any router, even located few meters next to me. Looks like WiFi doesn't work at all. I installed Blade WiFi Fixer, it didn't helped. Another "Fixer" also did nothing.
2) Battery drain is enormously HUGE. Quite interesting - during idle time battery drain is on acceptable level. For example, during night battery level dropped 10%. However, calling wipes out battery almost instantly. Just several phone calls (may be 15 - 20 min total) dropped battery level from 97% to 30%!
3) Ad-hoc network are not visible at all. Is this trick will make them work?
/system/etc/wifi/tiwlan.ini
WiFiAdhoc = 1
dot11DesiredSSID = HTCG1Default
dot11DesiredBSSType = 0
Before installing RCMix 1.4, I did factory reset, wiped out cache partition and Dalvik cache. I did not made GoldCard, however, and from the posts seen on this forum looks like it is not necessary.
PS. Before RCMix, I tried LeeDroiD 3.06. In spite of flashing zipalign first (before flashing LeeDroiD ROM), it bricked my phone - nothing happened beyond HTC screen.
Anyone can suggest me what to do next?
Well firstly, RCMix S is Sense and Sense is a battery drain. Secondly, change the wifi channel to auto on your router.
Firstly Sense is NOT a battery drain. I've lost 6% on idle in the last 8 hours on RCMix 1.5. That's on par with what I was getting with Oxygen.
Can you post what radio you have, as Gingerbread based ROM's seem to prefer the latest two, I believe they are optimised/tweaked to work better (most recent being 5.17.05.23)
Cactus42 said:
Can you post what radio you have, as Gingerbread based ROM's seem to prefer the latest two, I believe they are optimised/tweaked to work better (most recent being 5.17.05.23)
Click to expand...
Click to collapse
Thanks for suggestion, Cactus42 !
I have Baseband 32.49.0032U_5.11.05.27
Kernel 2.6.35.10-g308ba26
Do you suggest to download the (32.54.00.32U_5.14.05.17) one from?
http://forum.xda-developers.com/showthread.php?t=687464
Meaple said:
Secondly, change the wifi channel to auto on your router.
Click to expand...
Click to collapse
It was set so from the beginning.
I have upgraded to baseband radio 32.56.00.32U_5.17.05.23 as Cactus42 suggested.
There definitely one big improvement - I'm was able to connect to our WiFi (it wasn't possible at all before upgrade).
Unfortunately, one big issue remaining - connection to WiFi isn't stable, it dropping for no apparent reason in spite of very good signal level (iPhone works with the same WiFi without any problems at much larger distance). In Android settings WiFi sleep is set to 15 min.
Another problem - HTC launcher always crashes at startup, and after some time re-launches and everything seem to be OK. I don' use animated (live) wallpepers, just stock black colored picture.
Is anything else I'm being missing ?
Thanks in advance for any suggestion(s).
LinuksGuru said:
I have upgraded to baseband radio 32.56.00.32U_5.17.05.23 as Cactus42 suggested.
There definitely one big improvement - I'm was able to connect to our WiFi (it wasn't possible at all before upgrade).
Unfortunately, one big issue remaining - connection to WiFi isn't stable, it dropping for no apparent reason in spite of very good signal level (iPhone works with the same WiFi without any problems at much larger distance). In Android settings WiFi sleep is set to 15 min.
Another problem - HTC launcher always crashes at startup, and after some time re-launches and everything seem to be OK. I don' use animated (live) wallpepers, just stock black colored picture.
Is anything else I'm being missing ?
Thanks in advance for any suggestion(s).
Click to expand...
Click to collapse
If you're on RCMix 1.4 (I'm on 1.5 so slightly different set of problems) you can flash the RIL for the 5.17.05.23 radio:
http://www.multiupload.com/YXBZO2UH3R
Note - it contains the Adreno200 drivers we're using on RCMix 1.5 but as 1.4 already has them reflashing won't make a difference, also RIL's have been known to break the phone signal after screen lock, if that happens you'd need to reflash the ROM over the top again. The reason I've put this one up is because it's the only RIL I've ever had work and am using it now.
This was created by Baadnewz for InsertCoin, not me. I'im just re-uploading it as it's gone from his site.
This patch from LeeDroid forum - "Alternate WPA Supplicant - enable Ad-Hoc" (wpa_adhoc-signed.zip) - can it be flashed with RCMix S ?
RCMix S 1.5 Issues
I am sorry to use this thread but i also have some issues on the RCMix 1.5
- The first time i launch one app (ex: gallery, music, etc). This app close automatically, the second time works!
- The Locker rarely appear, i can just see my wallpaper and the drag bar. (After trying several times it works)
- If i try to create a mms, nothing appears to send, and when i try to send i get: ''messages stops.....force close..".
*Sorry my VERY BAD English, i am Portuguese and only comfortable reading, not writing.
I have an issue with any custom ROM's I've tried, when the phone sleeps my cell radio turns off and I cant receive phone calls, sms's and the like.. The service comes back after a minute of having the screen on, but its a real hassle. I dont have this issue with either of the stock roms, both 4.0.1 and 4.0.2 but anything custom causes me issues.. I wipe data, cache and dalvik and take care not to install any apps and the issue still arises.. I noticed there are a few other people having similar issues, but unlike them I do not have to reboot to get my cell radio working and its not just data, I have also tried the gamut of radio's but I am hesitant to flash radios constantly since my understanding is flashing them has a greater risk to brick your phone should something happen. Does anyone know anything I could try? I dont understand how custom roms all do this but a stock one wont..
set minimum CPU frequency to 700 mhz.
also try other radios (UGLA4 works very well)... flashing a radio won't brick your phone as long as its for your phone.. which in this case, just dont flash I515 radios (verizon)
what rom? kernel?
yannisthegreek has a thread about this; not uncommon by the sounds of it.
Purely conjecture on my part, but I think it's a power issue, i.e. your phone isn't supplying the radio with enough power to kick start it from sleep. Basing this on the fact that a particular kernel (Fugo IIRC?) or upping your min freq to 700 seems to fix the issue. I've yet to experience this however.
I'm going to try setting it to 700mhz right now, I've flashed CM9, Modaco, Codename Android, Revolution, used the Kernel that was provided with those ROMS and Franco's and Trinity, I have also tried every radio as well with the same results.. it does make sense the way mudferret explained it and also explains why it will start up after my phones out of sleep mode and running faster, the weird thing is that this just happened one day, my phone was fine running a custom rom and Franco's kernel and then one day I notice that I had calls going right to voice mail..
So glad I found this thread. I've been dealing with the same issue. People tell me when they try to call they get a fast busy signal. If I wake my phone for about a minute everything works again. I am going to try Fugo IIRC? kernel and see what that does.
Looks like setting my kernel to 700mhz did the trick.. using Franco Kernel and Modaco custom rom, this was driving me nuts.. I'm a happy camper now, thanks for the help guys..
flindil said:
Looks like setting my kernel to 700mhz did the trick.. using Franco Kernel and Modaco custom rom, this was driving me nuts.. I'm a happy camper now, thanks for the help guys..
Click to expand...
Click to collapse
Glad to see it up and running. I never had this problem but I always had my minimum frequency set to 700 MHz because I think I heard franco say something about it helps battery blah blah blah... it was a while back but I don't remember the full details
Yeah, I read that he said the difference on battery use was negligible.. that could have been why custom ROMS and kernels were working for me previously.
Sent from my Galaxy Nexus using xda premium
I don't believe that setting min freq to 700mhz solves anything that relates to ril.
If you were talking about voltages, that would be another story...
bk201doesntexist said:
I don't believe that setting min freq to 700mhz solves anything that relates to ril.
If you were talking about voltages, that would be another story...
Click to expand...
Click to collapse
What's the voltage differential between the 350 and 700 slots, if any?
Edit: I ask because I can't see my voltages on my current kernel
Have same problem post 4.0.4 update
I started seeing this too after a manual 4.0.4 update to my GSM Nexus. The phone is still stock (and was prior to the flash) with ClockWorkMod the only thing added. Still troubleshooting.
----------------------------------------------------
UPDATE: Noticed that this does not happen while phone is being charged. I've tried playing around with a CPU speed program, but I haven't yet figured out if the settings are taking properly.
Hi everyone
First of all, I'm not an expert and I'm not a developer as well; I'm just a geek who loves to understand things and solve problems. Now, since I first bought the Mi Mix 3, I noticed that I always had a problem with the battery discharge. When the phone was locked, in fact, it kept discharging very quickly and during the winter, now that my hands are colder than my ex-girlfriend heart, I could notice that even if the phone has been locked for hours, it's always a little bit warm. So he keeps doing something in the background. On the other hand, I never decided to go deeper into this, because I use two LTE sim cards and the network signal in my room is very bad, so I always end up thinking "Maybe the problem is the quality of the signal, the phone keeps attempting to connect to the mobile antennas and it needs a lot of energy". The fact is that my Mi Mix 3 kept discharging even with a very good signal, like 100m straight line to the tower. But again, I thought it was because of the bad optimization of the beta Chinese ROM (I was testing the MIUI 11).
Ok, Two days ago, I finally decided to flash a custom ROM. I love the MIUI but the temptation of flashing stuff is too high, so I went ahead, I downloaded the Evolution X 2.1 and I finally flashed it. The problem was still there. Moreover, now I'm using only one sim card. So let's flash Magisk and then BetterBatteryStats. And finally, I discovered the real problem: The DAMN CPU (both BIG cores and LITTLE cores) never go into the deep sleep state, literally. So I downloaded Kernel Auditor for more details and listen here: when the phone is locked, the BIG cores remain at their minimum frequency (825 MHz) as well as the Little ones (576 MHz, I could set it to 300 and actually I noticed a slight improvement). But no Deep Sleep at all; Kernel Auditor itself says "Never used frequencies: Deep Sleep".
So excellent! The Deep Sleep state doesn't exist at all into my phone, I'd understand having a small percentage of it, but nothing at all, what kind of problem is that? I checked the wakelocks anyway, but there was nothing weird going on. The highest value on the Kernel wakelocks was because of the display management and on the partial ones, the highest was the Google Play Services (Nah, just 1%). So wakelocks were fine. I ended up thinking that the problem was the FIrmware or the Kernel, that's something I'll never know maybe. But I managed to solve the problem.
How did I solve it?
Right at this moment I'm using the Evolution X 2.1 ROM and, to be frank, I thought it could solve the problem but it didn't. For instance, I also tried different governors instead of the schedutil set by default, like conservative or powersave, nothing changed again.
"Ok ok, enough about that, how can I solve it?"
You have to install the XASP (M.A.R.S.) mod. This will solve your problem.
Check the topic:
https://forum.xda-developers.com/mi-mix-3/development/rom-xasp-xiaomi-aosp-snapdragon-patch-t3931721
And the developer's website:
https://sites.google.com/view/miustone/HOME
And the developer's GitHub repository related to the project:
https://github.com/Miustone/MARS-Patch
Some hints:
You need an AOSP ROM in order to make it work. It won't work on any MIUI ROM (I think)!
The installation instructions say that you should flash it right after a fresh install of the ROM (It must be Android 9 / SDK 28 - AOSP ARM64), but I flashed it even after a few days of using and it worked as well.
You need to clone/download the repository, unzip it, move into the unzipped directory (where there's the META-INF), select everything and compress it into a zip file and that will be the patch you should flash using the TWRP recovery.
P.S. I know, it's not really a solution, I mean, If you don't want to root your phone, you have to rely on the original version of the MIUI, but from what I've seen, bot MIUI 10 global developer and MIUI 11 china developer have this problem. If you just don't want a custom ROM but you rooted your phone, you could try the MIUI EU ROM, I don't know if it has the same problem tho.
And finally, let your CPU rest a little bit!
UPDATE: The MIUI EU ROM works very well. The phone manages to go in the deep sleep state as well and everything works fine. So if you don't want to flash multiple zips and do tricky things, just use the MIUI EU ROM and you'll be ok. Let's keep reporting any deep sleep issue here tho!
And thanks everyone for the help!
EU MIUI 11 does not have the problem. I got fed up with the various inadequacies of the current AOSP-based roms and decided to give MIUI another go, although I previously disliked it intensely. Turns out that the EU version of MIUI 11 is stunningly good. Camera works properly, including with the slider, it's super-smooth and fast, notifications work correctly, but the biggest difference is battery life because when the screen is off there's almost no drain at all (in contrast to all the other ROMs I've tried). The only thing I didn't like about MIUI 11 was the launcher, even with the new app drawer option it's still not to my taste, but with Nova installed it works just like AOSP.
invisiblewave said:
EU MIUI 11 does not have the problem. I got fed up with the various inadequacies of the current AOSP-based ROMs and decided to give MIUI another go, although I previously disliked it intensely. Turns out that the EU version of MIUI 11 is stunningly good. Camera works properly, including with the slider, it's super-smooth and fast, notifications work correctly, but the biggest difference is battery life because when the screen is off there's almost no drain at all (in contrast to all the other ROMs I've tried). The only thing I didn't like about MIUI 11 was the launcher, even with the new app drawer option it's still not to my taste, but with Nova installed it works just like AOSP.
Click to expand...
Click to collapse
Well, this is a great thing to hear! Actually, the Evolution X 2.1 with that mod is just amazing, but the preinstalled GCam (Which works perfectly with pictures instead of the one you can install on the MIUI) can't take videos in 4K, only FHD; in general, I find the MIUI camera app excellent, but I can't find it and I'm quite sure I can't use it on this ROM. So maybe I'll give the MIUI 11 EU a try as well, thank you for sharing!
P.S. Turned out that I was having the deep sleep issue even after flashing the patch, but I was able to notice that it was because of the Google Photo app, so check for that if you're experiencing the battery drain problem.
Takenfal said:
Well, this is a great thing to hear! Actually, the Evolution X 2.1 with that mod is just amazing, but the preinstalled GCam (Which works perfectly with pictures instead of the one you can install on the MIUI) can't take videos in 4K, only FHD; in general, I find the MIUI camera app excellent, but I can't find it and I'm quite sure I can't use it on this ROM. So maybe I'll give the MIUI 11 EU a try as well, thank you for sharing!
P.S. Turned out that I was having the deep sleep issue even after flashing the patch, but I was able to notice that it was because of the Google Photo app, so check for that if you're experiencing the battery drain problem.
Click to expand...
Click to collapse
Yes! I'm somewhat shocked at how good MIUI 11 is. The app permissions are still a bit of an annoyance, they seem to install with no permissions by default, so you have to grant them, but there's a new option (I assume it's an Android 10 feature) to allow a permission only while an app is in use which is nice. I've been running it for a few days now and I can't see any reason to go back. The other huge thing it solved for me is the reboot issue with wireless charging that seems to afflict all the AOSP/LOS-based roms (random reboots and bootloops while charging, to test it put your phone on a wireless charger and reboot).
invisiblewave said:
Yes! I'm somewhat shocked at how good MIUI 11 is. The app permissions are still a bit of an annoyance, they seem to install with no permissions by default, so you have to grant them, but there's a new option (I assume it's an Android 10 feature) to allow a permission only while an app is in use which is nice. I've been running it for a few days now and I can't see any reason to go back. The other huge thing it solved for me is the reboot issue with wireless charging that seems to afflict all the AOSP/LOS-based roms (random reboots and bootloops while charging, to test it put your phone on a wireless charger and reboot).
Click to expand...
Click to collapse
Look like you're right! I rebooted my phone while charging it wirelessly and it kept rebooting on MI logo. Interesting bug lol
Takenfal said:
Look like you're right! I rebooted my phone while charging it wirelessly and it kept rebooting on MI logo. Interesting bug lol
Click to expand...
Click to collapse
Yes, and if you leave it on charge overnight, it will occasionally randomly reboot then bootloop until the light wakes you up. Ask me how I know..... I highly recommend you try MIUI 11, I still haven't found any problems with it and I even managed to get Google Pay working, which I wasn't able to do on any of the other roms.
I know that the collection of scripts and stuff posted above have been massively flamed as causing issues elsewhere in the forums. I would generally caution against installing them as many users ended up fastbooting other MIUI devices after trying to install them. I think the dev who made them is trying to do good things, but I would proceed with caution. As others have mentioned, MIUI11 does not seem to have this problem.
@PWn3R Yep, had a nice stressy afternoon with the patch. Managed to make a few aditional mistakes and was locked out of recovery and ended up flashing the phone through fastboot.
I did fix my battery issues though, and it is running quite well now. Instead of roughly 12 hours of battery life I now get over 24 with the same usage.
I really hate MIUI and will never go back for the simple reason that my phone that I used for development was unable to activate ADB sideloading because it has to validate this against Xiaomi servers. And there was an issue there. To much control over my device is in China, so that is a big no no for me. I rather deal with some custom rom issues than that.
I see, but It's the only way I was able to finally put the phone in deep sleep. I don't know what's wrong with the Mi MIX 3 but it's very hard to see the deep sleep state with any ROM, MIUI or customs doesn't matter. I'm trying the MIUI EU now and guess what? The CPU is constantly running at 576 MHz. Only 2 minutes of deep sleep over an entire day without charging it. I only installed Whatsapp, Telegram X, and BetterBatteryStats. The integrated battery tool shows that WhatsApp is the cause of the massive battery drain (don't know if it's really because it prevents the deep sleep state or because it had to restore all the media after the installation); in any case, BetterbatteryStats, on the partial wakelocks tab, shows WhatsApp but only 1% of wakelocks. So I don't really know what the cause is.
Hi - here's my device with over 150 apps installed. I am running Xaomi EU atm with the latest weekly beta.
PWn3R said:
Hi - here's my device with over 150 apps installed. I am running Xaomi EU atm with the latest weekly beta.
Click to expand...
Click to collapse
+1. That looks like mine, too. With the screen off, the drain is less than I've ever seen on any device previously. Modified versions of the rom optimized for a device always perform better than AOSP, particularly on battery. It all comes down to whether you can live with the rest of the crap they usually add. EU MIUI 11 is a pretty good compromise, imo, with a third party launcher installed it's very similar to the other roms anyway.
Takenfal said:
Hi everyone
First of all, I'm not an expert and I'm not a developer as well; I'm just a geek who loves to understand things and solve problems. Now, since I first bought the Mi Mix 3, I noticed that I always had a problem with the battery discharge. When the phone was locked, in fact, it kept discharging very quickly and during the winter, now that my hands are colder than my ex-girlfriend heart, I could notice that even if the phone has been locked for hours, it's always a little bit warm. So he keeps doing something in the background. On the other hand, I never decided to go deeper into this, because I use two LTE sim cards and the network signal in my room is very bad, so I always end up thinking "Maybe the problem is the quality of the signal, the phone keeps attempting to connect to the mobile antennas and it needs a lot of energy". The fact is that my Mi Mix 3 kept discharging even with a very good signal, like 100m straight line to the tower. But again, I thought it was because of the bad optimization of the beta Chinese ROM (I was testing the MIUI 11).
Ok, Two days ago, I finally decided to flash a custom ROM. I love the MIUI but the temptation of flashing stuff is too high, so I went ahead, I downloaded the Evolution X 2.1 and I finally flashed it. The problem was still there. Moreover, now I'm using only one sim card. So let's flash Magisk and then BetterBatteryStats. And finally, I discovered the real problem: The DAMN CPU (both BIG cores and LITTLE cores) never go into the deep sleep state, literally. So I downloaded Kernel Auditor for more details and listen here: when the phone is locked, the BIG cores remain at their minimum frequency (825 MHz) as well as the Little ones (576 MHz, I could set it to 300 and actually I noticed a slight improvement). But no Deep Sleep at all; Kernel Auditor itself says "Never used frequencies: Deep Sleep".
So excellent! The Deep Sleep state doesn't exist at all into my phone, I'd understand having a small percentage of it, but nothing at all, what kind of problem is that? I checked the wakelocks anyway, but there was nothing weird going on. The highest value on the Kernel wakelocks was because of the display management and on the partial ones, the highest was the Google Play Services (Nah, just 1%). So wakelocks were fine. I ended up thinking that the problem was the FIrmware or the Kernel, that's something I'll never know maybe. But I managed to solve the problem.
How did I solve it?
Right at this moment I'm using the Evolution X 2.1 ROM and, to be frank, I thought it could solve the problem but it didn't. For instance, I also tried different governors instead of the schedutil set by default, like conservative or powersave, nothing changed again.
"Ok ok, enough about that, how can I solve it?"
You have to install the XASP (M.A.R.S.) mod. This will solve your problem.
Check the topic:
https://forum.xda-developers.com/mi-mix-3/development/rom-xasp-xiaomi-aosp-snapdragon-patch-t3931721
And the developer's website:
https://sites.google.com/view/miustone/HOME
And the developer's GitHub repository related to the project:
https://github.com/Miustone/MARS-Patch
Some hints:
You need an AOSP ROM in order to make it work. It won't work on any MIUI ROM (I think)!
The installation instructions say that you should flash it right after a fresh install of the ROM (It must be Android 9 / SDK 28 - AOSP ARM64), but I flashed it even after a few days of using and it worked as well.
You need to clone/download the repository, unzip it, move into the unzipped directory (where there's the META-INF), select everything and compress it into a zip file and that will be the patch you should flash using the TWRP recovery.
P.S. I know, it's not really a solution, I mean, If you don't want to root your phone, you have to rely on the original version of the MIUI, but from what I've seen, bot MIUI 10 global developer and MIUI 11 china developer have this problem. If you just don't want a custom ROM but you rooted your phone, you could try the MIUI EU ROM, I don't know if it has the same problem tho.
And finally, let your CPU rest a little bit!
Click to expand...
Click to collapse
I fixed mine by disabling proximity sensor. My phone got to deep sleep just after
I am running the latest Xiaomi.eu MIUI 11. According the Kernel Adiutor Frequency Table it is going to Deep Sleep whenever not awake, but the lowest frequency for Cores 0-3 is 576MHz, (everything below is unused). Cores 4-7 are almost always in their lowest frequency, 825MHz.
So is this deep sleeping or not? I would not say battery life is amazing. The biggest battery drainer is cell standby, which is more even than screen. I can't get better battery stats to work (keeps repeatedly flashing up the superuser message).
Deep sleep is a know problem on most custom rom, solution: flash XENT kernel, been using RR with xent for a while and deep sleep work well.
patp said:
I am running the latest Xiaomi.eu MIUI 11. According the Kernel Adiutor Frequency Table it is going to Deep Sleep whenever not awake, but the lowest frequency for Cores 0-3 is 576MHz, (everything below is unused). Cores 4-7 are almost always in their lowest frequency, 825MHz.
So is this deep sleeping or not? I would not say battery life is amazing. The biggest battery drainer is cell standby, which is more even than the screen. I can't get better battery stats to work (keeps repeatedly flashing up the superuser message).
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There should be a deep sleep state even for the BIG cores; the fact that they remain at the lowest frequency (825 MHz) is not good. Also, I don't understand why, when the phone is locked, the minimum frequency is not lower than 576 MHz when the LITTLE cores could go at 300 MHz, but that's not really a problem). Maybe it's related to the fact that your phone keeps searching for a good signal, and maybe that's why stats tell you that "cell standby" is draining a lot of battery. Is your phone the global version (the phone, not the ROM) or the Chinese one?
GVN.Gallus said:
Deep sleep is a known problem on most custom ROM, solution: flash XENT kernel, been using RR with xent for a while and deep sleep work well.
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Interesting, I'd like to give it a try;
UPDATE : Anyway, besides the first deep issue problem, now the phone is working perfectly with the MIUI EU v 11 based on Android 10. When I lock the phone there's no more battery drain AT ALL. If I lock it at 15% and I unlock it after 2 hours, it's still at 15%. This is how deep sleep should Work. Maybe the first problem I had with the EU ROM was related to the google services syncing all my stuff (still don't understand why some things that keep the CPU from going in the deep sleep state are not shown even using BBS).
Note for anyone switching to the weekly MIUI/10 rom, I had microphone issues on calls which appear to be solved by flashing the latest firmware.
Edit: Firmware wasn't the fix. The workaround is to toggle the speakerphone on and off again. The microphone then works on all calls until you reboot the phone, then you have to do the toggle trick again.
GVN.Gallus said:
Deep sleep is a know problem on most custom rom, solution: flash XENT kernel, been using RR with xent for a while and deep sleep work well.
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Where can I find XENT kernel, please?
ChienJian said:
Where can I find XENT kernel, please?
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You can find it in the Mi Mix 3 Global Community telegram group: https://t.me/MiMix3Global
Takenfal said:
There should be a deep sleep state even for the BIG cores; the fact that they remain at the lowest frequency (825 MHz) is not good. Also, I don't understand why, when the phone is locked, the minimum frequency is not lower than 576 MHz when the LITTLE cores could go at 300 MHz, but that's not really a problem). Maybe it's related to the fact that your phone keeps searching for a good signal, and maybe that's why stats tell you that "cell standby" is draining a lot of battery. Is your phone the global version (the phone, not the ROM) or the Chinese one?
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Click to collapse
Global version. But I fixed the battery drain. Completely uninstalled WhatsApp, deleted folder and reinstalled latest. Deleted Play Services data. Set preferred network to LTE/WCDMA. Now I have minimal cell-standby and battery doesn't drop significantly when screen is off.
Frequencies remain the same, but maybe the min freq is a red herring - Kernel Adiutor says it spends plenty of time in Deep Sleep.