how to change battery on samsung s7

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• #i

Hello to the pro's here.

Is it possible to reset the telephone batt_cycle entry?

Reason: after changing the battery I realized that the new one (original Samsung as far equally I can tell with man. Date 11/2017) does not perform as expected. The observation is that the battery is not charged to the correct final charging voltage of 4.35V merely instead charging is stopped at iv.2875V indicating 100%

This did confuse me - after all that'due south throwing away with some juice that could notwithstanding have gone into the battery.

Further investigation shows that the irresolute of the battery did non reset the batt_cycle to 0 but instead information technology is counting onwards! Comparing the readings to those of a S7 withal with it'south original battery but with many cycles shows that the old battery also stops charging at iv.2875V.

I'1000 suspecting that the voltage is lowered on higher battery wheel to prevent harm coming from overly demanding charging an quondam bombardment. Simply now with the battery changed to a new one a lot of potential is going down the bleed....

That's why I'one thousand request. How tin the counter be reset?

The topic is discussed in length and with further info (in German) here (especially upwardly from post 41 onwards - you will also find a tool there that reads out several corresponding values of the battery):

https://www.android-hilfe.de/index.php?threads/869644/

Merely we still don't havea solution all the same and that's why I am asking the more tech inclined specialists here. I hope you can help us. Thanks in accelerate.

Last edited: Apr 26, 2022

• #2

Try edit battery_cycle merely no luck. Its return sometime value after reboot

• #iii

Information technology might be the cycles are stored somewhere else and merely reflected in this file. But somehow information technology has to be possible to reset information technology because Samsung service also does it after irresolute the battery...

Gesendet von meinem SM-G930F mit Tapatalk

• #four

Hello to the pro's here.

Is information technology possible to reset the telephone batt_cycle entry?

Reason: after irresolute the battery I realized that the new one (original Samsung as far as I can tell with man. Date xi/2017) does not perform equally expected. The observation is that the battery is not charged to the correct final charging voltage of four.35V but instead charging is stopped at 4.2875V indicating 100%

This did misfile me - afterward all that's throwing abroad with some juice that could still have gone into the bombardment.

Farther investigation shows that the changing of the battery did non reset the batt_cycle to 0 merely instead it is counting onwards! Comparing the readings to those of a S7 all the same with it's original battery merely with many cycles shows that the onetime bombardment likewise stops charging at 4.2875V.

I'm suspecting that the voltage is lowered on college battery cycle to prevent damage coming from overly demanding charging an old battery. But now with the battery inverse to a new one a lot of potential is going downwards the drain....

That's why I'g asking. How can the counter be reset?

The topic is discussed in length and with further info (in German language) here (especially upwardly from post 41 onwards - you will also notice a tool at that place that reads out several corresponding values of the battery):

https://world wide web.android-hilfe.de/index.php?threads/869644/

Only we nevertheless don't havea solution yet and that'southward why I am asking the more tech inclined specialists here. I hope yous can assist united states of america. Thanks in advance.

At that place is this code *#9900# that brings a card and at that place is an choice called "BATTERYSTATS RESET" at the bottom, however i tried this and did non deleted discharge cycle number, and then i estimate there is other code for that.

• #5

Hey Budies our German friends made it
its solved
From Audianer

Breaking News
@slackstring hat herausgefunden wie homo den Wert zurücksetzt!

Vorab: Root wird benötigt!

Root/efs/factoryapp/batt_discharge_level

Da drin befindet sich der Wert "batt_cycle" im Format xxx,xx. Ich hatte einen batt_cycle von 674 und in der Datei stand 67439. Habe diesen auf 2800 zurückgesetzt da das der fg_cycle Wert meines neuen Akkus ist. Siehe da, nun habe ich einen batt_cycle von 28 und fg_full_voltage ist wieder bei 43500

Achtung!
1. Bitte nicht den Wert zurücksetzen wenn ihr den Akku nicht getauscht habe. Wir wissen nicht wie sich ein modify Akku verhält der wieder ganz voll geladen wird

two. Wichtig!! Macht mit TWRP ein Backup der EFS Partition bevor ich anfangt etwas zu ändern.

Screenshot_20190124-092030.jpg

Root Crashkurs zum Ladezyklen zurücksetzen.

• #6

This worked for me.

Root/efs/factoryapp/batt_discharge_level

make value
000 for 0 bicycle
100 for i bike etc.

Hey Budies our German friends made it

• #7

Hey Budies our German friends made it
its solved
From Audianer

Breaking News
@slackstring lid herausgefunden wie man den Wert zurücksetzt!

Vorab: Root wird benötigt!

Root/efs/factoryapp/batt_discharge_level

Da drin befindet sich der Wert "batt_cycle" im Format 30,twenty. Ich hatte einen batt_cycle von 674 und in der Datei stand 67439. Habe diesen auf 2800 zurückgesetzt da das der fg_cycle Wert meines neuen Akkus ist. Siehe da, nun habe ich einen batt_cycle von 28 und fg_full_voltage ist wieder bei 43500

Achtung!
one. Bitte nicht den Wert zurücksetzen wenn ihr den Akku nicht getauscht habe. Wir wissen nicht wie sich ein alter Akku verhält der wieder ganz voll geladen wird

2. Wichtig!! Macht mit TWRP ein Backup der EFS Segmentation bevor ich anfangt etwas zu ändern.

Screenshot_20190124-092030.jpg

Root Crashkurs zum Ladezyklen zurücksetzen.

care to translate it to english language.
i inverse mine like five months agone and never noticed a difference. i changed information technology on official samsung repair service.

• #viii

This worked for me.

Root/efs/factoryapp/batt_discharge_level

make value
000 for 0 cycle
100 for 1 cycle etc.

I did this and it worked showtime time
I set my battery cycles to 10000(100cycles) but information technology set itself to 119
I tried lowering the number again but cycle count in phone info app didnt modify no matter what i did
Premissions are 640 (rw-r----)
I dont know why it doesnt piece of work

• #9

How did yous replace the telephone battery?
And is it nevertheless water-resistant?

---------- Postal service added at 04:57 PM ---------- Previous mail was at 04:55 PM ----------

Wir wissen nicht wie sich ein change Akku verhält der wieder ganz voll geladen wird

A lower battery voltage would also extend the battery life span of a young battery, but let's be honest:
Who on earth likes to charge slower?

I cherish fast charging.

• #x

Only faced aforementioned prob as OP, went echo "100" > /efs/FactoryApp/batt_discharge_level on it, file was 12345 (or something like that), after reset when true cat checkin the file had two lines in information technology. Merely deleted it. Let's see what happens.
At least it got recreated by the organisation.
"1" is all system had to say near information technology. No 0's. Plus he says permissions are 600.
Battery went from 95% to 63% in about 20minutes.
ThunderTweaks was stating 56% battery wellness beforehand on new original battery.
Id say information technology worked.
But you can never be too sure.

on BlackDiamondN8 5.1 and ThunderStorm kernel ii.3

Happy new year folks!
@nalas

Last edited: Dec 31, 2022

• #11

How did y'all supercede the phone battery?
And is it still water-resistant?

---------- Post added at 04:57 PM ---------- Previous post was at 04:55 PM ----------

A lower bombardment voltage would besides extend the battery life bridge of a young battery, but let's exist honest:
Who on earth likes to charge slower?

I cherish fast charging.

Utilise this stuff: Mannol 9911: Neutral Silicone.

https://sct-catalogue.de/imgbank/Epitome/public/images/bilder_chemie/big/99110800008_b.jpg

Best solution e'er if used w/brains.
Get one, like 10e ebay.
Go a litter bottle of beer filled with water to ninety%, put a minimal (like 1mm wide line around) of this stuff on the meridian part of the bottle (you lot know where you drinkable from, whatever the give-and-take is), and then stamp a credit card on it and press until you lot think its spread so fine that information technology will exist impossible for **** to agree.
Wait 24-48h.
Thrash the canteen around.
By not property the bottle, but the credit card. You'll apace understand what i hateful.
This stuff is waterproof, neutral, flexible, and potent every bit f* nails, all at the same fourth dimension.
Then give thanks me

Promoted to glue hall of fame in almost 30 seconds. Right after Araldite and Blackness fiber tape.

It will make your **** waterproof.

Last edited: Dec 31, 2022

• #12

Use this stuff: Mannol 9911: Neutral Silicone.

https://sct-catalogue.de/imgbank/Epitome/public/images/bilder_chemie/big/99110800008_b.jpg

Best solution ever if used due west/brains.
Get i, similar 10e ebay.
Get a litter bottle of beer filled with water to 90%, put a minimal (like 1mm broad line around) of this stuff on the acme part of the bottle (yous know where y'all potable from, whatever the word is), and then stamp a credit card on it and press until yous think its spread and then fine that it volition be impossible for **** to agree.
Wait 24-48h.
Thrash the canteen around.
By non holding the bottle, just the credit bill of fare. You'll quickly empathize what i mean.
This stuff is waterproof, neutral, flexible, and strong as f* nails, all at the same time.
Then give thanks me

Promoted to glue hall of fame in about xxx seconds. Right later on Araldite and Blackness fiber record.

It will make your **** waterproof.

Just use B7000, information technology's fabricated for exactly these kinds of phone repairs. Holds tight, flexible, just easy to remove with heat if needed for future repairs.
I used a combination 2mm foam record and B7000 glue and my S7 is waterproof co-ordinate to pressure level tests.

• #xiii

Just use B7000, it's made for exactly these kinds of phone repairs. Holds tight, flexible, simply easy to remove with oestrus if needed for hereafter repairs.
I used a combination 2mm foam tape and B7000 glue and my S7 is waterproof according to force per unit area tests.

Will definitely endeavor that adjacent time. I did see the B7000 while searching for mucilage, but I merely opted for Mannol as its likely better for waterproofing, and I don't mind replacing the back drinking glass every two years or and then when I supercede batteries.

Thanks for the suggestion! :good:

Similar threads

Source: https://forum.xda-developers.com/t/reset-battery-cycle-counter-on-samsung-galaxy-s7.3782807/

Posted by: bynumraimad.blogspot.com

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