Black screen and no sign of charging on rstart after latest update.

[Goku_dbz]

S25+: Yesterday morning after latest update within three hours  battery drained rapidly (from 96 to 10) and mobile started to heat up, So i restarted the mobile but after turning off it never rebooted. Now it's not responding at all, not getting charged.
When i visited service center in the evening, the service person just tried to charge and said mother board is not working, it needs to be replaced and entire data will be lost(auto sync was off in my phone).

Does anyone have similar issue and any possible solution which could fix this issue .

[meself]

Would need to get motherboard replacement it seems

[Goku_dbz]

Did you face similar issue?
But that would mean i'll lose all my data. is there a way to retrieve data?

[meself]

I haven't had any issues if your enabled to start or use the phone and the mother board os needing replaced I'm not sure if a away to back up or save any data or files etc

[nullandvoid]

If you didn't have auto backup on and didn't think it was worth making independent, off-line backups on a regular basis, then I'm afraid you will have to face the consequences of losing your data to a motherboard replacement.  Devices fail, get lost or stolen and no one knows when any of these events will happen, so if you are not backing up regularly, then your data is not important enough to you.

One of the reasons for Google and Samsung's auto backup feature is to protect people from their own shortsightedness.  I'm sorry if I'm not more empathetic to your plight, but as someone who lived through the days of constant computer failures and glitches, I know the importance of regular (multiple) backups.

[Goku_dbz]

Yah what you said about backup in now-a-days common system failures and corruption/glitch occurrences is absolutely correct . Actually recently my cloud storage was full and wanted to clean up after sometime but delayed it due to some reasons and also wasn't expecting this from a premium flagship model that too within a year which cost me my data . 

I agree my negligence led to this situation.

But i also have concerns regarding this:

1. the storage provide in mobile and cloud storage definitely has a huge gap, of course their strategy is to make us pay(for cloud) money in one way or the other. 

2.
    a. I came to know that when we give our phone for service related to this kind  of issues, they only do basic check and ask for board replacement even without checking each component i.e component(power ic, UFS, RAM,CPU....)  level testing is not done in warranty services, it is done in paid service that to if explicitly customer forces them to do. [doing component level testing can reveal a lot about the actual cause of issue and if possible data can be retrieved as well]

    b. This is because they send this pre-assumed(entirely useless) defective mother board to company when replacement request is made under warranty and each component should be untampered to claim warranty which doesn't make any sense as the board is however being replaced so if the service person sees no sign of tampering of components they should go for component level checking and raise a claim for replacement(so what now don't say the company is not trusting their own service center persons, or they  don't want these expensive components (RAM, UFS, processor(maybe snapdragon or exynox) to be tampered  so that they can reuse them, if any of those components are still in healthy condition)
3. I can still consider second point (if what i heard about claiming warranty requires untampered board to be sent to company ) for any undisclosed security concerns, but at least they should allow to try to tamper with storage component or even better separately place the storage from motherboard (i know this leads to slower access to storage) so that by some uncertain/non-user fault scenarios are encountered, data can be retrieved using some secure way.

[nullandvoid]

You don't  have to back up to cloud storage - they make flash drives, external drives, external SD card readers, and Smart Switch for computer with which you can make a complete backup to your computer (if you have one).  And, Samsung offers unlimited cloud backup storage for 30 days (at a time), so you could back up there until you clear out your other cloud storage.