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[5z] Bad Service! Battery Changed 4 Months ago and now it is very Badly Degraded, Seeing Idle Drain.

AmitGarde
Community Legend II
Model Name: ZS620KL
Firmware Version:100.10.107.123
Rooted or not: Not
Frequency of Occurrence: Daily
APP Name & APP Version (If your issue relates to the app): Hardware issue related to new replaced Battery.
On February 24th i got my battery changed from authorised service centre by paying a certain amount thinking that i can use my Zenfone 5z for another 2 years, even when i was getting normal 4hrs of satisfactory SOT for normal use from my 2.6 year old original battery.
About Changed/Replaced battery :-
Until 4 months there was no problem with my changed battery i use to daily get 6hrs of SOT for normal usage. And there was no idle drain.
From last 15 days i started seeing a lot of idle drain issue where i always need to charge my device for 2 times in a day (4 months old new Battery). So here i thought it may be a software issue and i still awaited and tried many battery restricting features for day to day usage but nothing helped and belive me i use to put my device on charge daily with battery care features i.e scheduled charging,Switch by battery level,Dynamic charging upto 80% and many other workarounds but still behaviour of my battery remained as it is. And with frustration Later after 12 days i decided to factory data reset to see if that will help. But issue is still the same.
After Factory data Reset :-
Behaviour is still the same even after using all battery caring features,even i use auto start manager denied all apps and also have restricted many apps but no help.
Now what i am seeing is if i dont use my phone for so long or u can say if it is kept idle/Standby drain keeps running in background while super clean feature for all apps is On, as soon as i lock my device Drain is continous. you can say for for every 1.5 Hr of idle time battery drains 4-5 percent approximately.
Daily while i Go to sleep i have turned super saving mode On, what i see is if i keep my battery 20% before going to sleep at 4.30am until in the morning when i wake up at 10.30am i see that my battery is 2-3% remaining or sometimes phone is switched Off.
Now here i really doubt if my replaced/changed battery is original. Which is provided by authorised service centre. I trusted Authorised service centre for Original battery and so i decided to take a chance and what i now see is something fisshy here even after paying so much to replace a battery. How can a origianal battery degrade soo much just in 4months after replacement?? While my old original battery which came with device use to give me 4hrs of SOT even after 2.5 years of usage before replacement.
Here are some proofs with date and time how battery is degraded and keeps doing idle drain while i was working for long time without unlocking my device (Auto start manager all apps are denied)👇:-
At 4.55 pm 50%
screenshot-20210722-165522226-1.jpg
At 6.20 pm 46%
screenshot-20210722-182039476-1.jpg
At 8.03 pm 41%
screenshot-20210722-200303891-1.jpg
Now at night while going to sleep :-
At 4.25 am 20% (Super saving On)
screenshot-20210723-042506389-1.jpg
At 10.58 am 3% (Woke up)
screenshot-20210723-105804918-1.jpg
Overall SOT i am getting for normal use (4 months old battery only)👇:-
screenshot-20210721-212405833.jpg
Battery page doesnt show that idle drain i dont know why,but aside battery starts to drain continous in the background as soon as i lock my device. 🥺😰
I never had any issues with my Zenfone 5z till date but just taking my device to Authorised service centre to change my battery by trusting them ruined my all Flagship experince and now i am frustrated with such backup. Is my replaced/changed battery not an original battery..??
help me with the solution my battery is still new. I am sad with spare service.
@ARP_ASUS @Falcon_ASUS @Christine_ASUS @CH_ASUS @fussion_ASUS @Kris_ASUS @Gustav_ASUS @Chris1
Thanks!
55 REPLIES 55

ramneek2110
Rising Star I
nalin.kanaujia

https://zentalk.asus.com/en/discussion/comment/186062#Comment_186062

Is Asus deliberating doing this?

Bad battery backup, I can understand, after three yeas, but wide angle camera not working suddenly is weird.

We can take a survey and then report it to tech websites and other authorities.


View post
There you go -
https://thegadgetshub.in/wide-angle-camera-not-working-on-zenfone-5z/
This issue is indeed wide spread but Asus just doesn't seem to bother about it.
Anyway, it's an old phone because of that but Asus 5z has always been plagued with issues such as in the early days the phone couldn't detect the SIM and sometimes all of a sudden the camera goes blurry for some reason

nalin_kanaujia
Star II
ramneek2110

https://zentalk.asus.com/en/discussion/comment/186073#Comment_186073

There you go -

https://thegadgetshub.in/wide-angle-camera-not-working-on-zenfone-5z/

This issue is indeed wide spread but Asus just doesn't seem to bother about it.

Anyway, it's an old phone because of that but Asus 5z has always been plagued with issues such as in the early days the phone couldn't detect the SIM and sometimes all of a sudden the camera goes blurry for some reason


View post
Yeah, the issue seems widespread and yes, it's an old phone but the truth is zenfone 5z have always had issues. Gps issue, no network issue, camera blur issue, wide angle camera not working issue etc.

Seems like cheap hardware coupled with bad software integration.

Anyway, lesson learnt. Asus, never again.

nalin_kanaujia
Star II
I just heard a friend saying that WiFi stopped working in his ROG phone 5 after an update. And that the forum is rife with such issues for his phone too.

So basically Asus doesn't make good phones.. period.

AmitGarde
Community Legend II
Now all of sudden my battery has started to work back to normal i dont know how...!
I bought my device back from service centre before 15 days with unsolved issue because of my frustration with service and time it was taking to repair. Until 4 days ago idle drain was constantly seen and later till today i am now surprisingly stopped seeing idle drain....! I tested With all the settings set but everything seems to be back to normal ... 🙂 But now what i am seeing is battery backup is reduced to some extent like half hour or 1 before i use to see 5.30 -6.00 hrs SOT with new battery but now after all this long story SOT i am seeing now is 4hrs.30min but i am happy that idle drain i stopped but dont know how...! @ARP_ASUS @fussion_ASUS @Falcon_ASUS
Thanksalot for all support..

sidarya31
Rising Star II
AmitGarde

Now all of sudden my battery has started to work back to normal i dont know how...!

I bought my device back from service centre before 15 days with unsolved issue because of my frustration with service and time it was taking to repair. Until 4 days ago idle drain was constantly seen and later till today i am now surprisingly stopped seeing idle drain....! I tested With all the settings set but everything seems to be back to normal ... 🙂 But now what i am seeing is battery backup is reduced to some extent like half hour or 1 before i use to see 5.30 -6.00 hrs SOT with new battery but now after all this long story SOT i am seeing now is 4hrs.30min but i am happy that idle drain i stopped but dont know how...! @ARP_ASUS @fussion_ASUS @Falcon_ASUS

Thanksalot for all support..


View post
I think this is due to phone's AI is trying to learn from that new battery output, as 5z is full of AI learning, isn't it the cause?