Mi4 Lte Ramdom Reboots [with Logs]

[jesuslg123]

2 months free of reboots on iva room.
cne is set to 0 (by default)
I will test to enabled it.

Enviado desde mi MI 4LTE mediante Tapatalk

 

[buzdo]

In KK it was also disabled, that's why I tried this.
But with ivan rom kernel is different so it might not even matter.

 

[jc rey]

Ok good test, we can see if reboot happens with mpdecision and cne off.

Did you clear cache and dalvik after editing the build.prop? It's important so
apk dependencies get rebuilt.

Yes, wipes are done, but for the moment mpdecision still active since I never got a reboot without mpdecision since August.

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[buzdo]

Sorry yes I meant mpdecision on and cne off. Good test.

 

[Michele96]

hi, having my on my running in the background mi4 wake lock with its block cel has restarted, I state that I had the app with permission to start

 

[Deleted member 160675]

hi, having my on my running in the background mi4 wake lock with its block cel has restarted, I state that I had the app with permission to start

You might have to try @buzdo 's method of diabling CNE or my method of fastboot flashing with MiFlash selecting the advanced options.

 

[Caluslb]

//cloud.tapatalk.com/s/57dfe313e1118/thermal-engine-8974.conf.zip

After copy unzip on your phone, reboot twrp,
Replace /system/etc thermal Conf by this one (need to unzip)
In /system/bin remove mpdecision

Reboot.

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Thanks for your tutorial, but i need rename thermal-8974 to pref rigth?

 

[jc rey]

Thanks for your tutorial, but i need rename thermal-8974 to pref rigth?

No rename, just but rights 755 on it. You replace an existing file.

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[Caluslb]

No rename, just but rights 755 on it. You replace an existing file.

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Ah okok thanks, how i put rights 755 on it?

 

[jc rey]

Ah okok thanks, how i put rights 755 on it?

With twrp, select file and you will have button to change to 755.

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[Caluslb]

With twrp, select file and you will have button to change to 755.

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Thanks again, this method work with rom xiaomi official and rom xiaomi.eu?

 

[jc rey]

Yes works on both.

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[NOECUBI]

Yes works on both.

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It looks so simple. Why don't solve it the miui developers???

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[jc rey]

It looks so simple. Why don't solve it the miui developers???

Sent from my MI 4LTE using Tapatalk

at least with just disabling cne persist, no reboot on 180h, changed to beta rom 6.10.25 I applied the same.
Note that before doing that I did a full miflash with global dev rom 'flash all'.

Also there are 2 main issues:
first the reboots
second the fact that only 2 cores are available, 2 are disabled and cannot be activated anymore.

seems we have workarounds for reboots
For active cores, the only way is to remove mpdecision+thermal conf to recover 4 cores, and you will notice it has better battery life ! (my guess is that 4 cores at 500MHz consumes much less power than 2 at 1GHz)

 

[buzdo]

@jc rey What do your recent tests show with mpdecision on and cne off?

 

[jc rey]

@jc rey What do your recent tests show with mpdecision on and cne off?

it ran fine for 180h, no reboot (rom 6.10.18).
I stopped the test as I installed new global beta 6.10.25, and reapplied the same cne off, mpdecision on. It seems however they changed the mpdecision, but we still get only two cores working.

 

[jesuslg123]

After 5 days with cne enabled on ivan rom, no ramdom reboots.

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[buzdo]

Could be a combination of things then or just blind coincidence regarding the cne thing.

Unfortunately it looks like cne off is not foolproof. My gf's phone battery discharged completely because she wasn't able to charge it in time, anyway after a full recharge 2 reboots happened about 10 hrs apart, but now it's again working over 100hrs uptime. No idea what to make of this.

Still never had this much uptime before this so I'm keeping it off. Since cne is related to network data usage and wifi data usage I guess reboots could have something to do with either of this.

 

[manlysixpacks]

testing chance cne in build.prop from 1 to 0....

 

[jc rey]

Cne disabled got reboot on global dev... Sadly

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[manlysixpacks]

Cne disabled got reboot on global dev... Sadly

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Oh.. mine using 3 days without reboots, still keeping an eye~~

 

[buzdo]

Cne disabled got reboot on global dev... Sadly

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How much uptime did you manage to get?

Gf's phone now rebooting constantly again too. But before complete battery drain the uptime was excellent with no reboots.

 

[jc rey]

How much uptime did you manage to get?

Gf's phone now rebooting constantly again too. But before complete battery drain the uptime was excellent with no reboots.

About 40h with 6.10.25 and cne off.
More than 180 with 6.10.18 with cne off.

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[jc rey]

How much uptime did you manage to get?

Gf's phone now rebooting constantly again too. But before complete battery drain the uptime was excellent with no reboots.

What rom version?

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[manlysixpacks]

One week no auto reboots with cne set to 0, nice result.. thanks mates.