What's next is to try taking a good phone of same make, model and revision then having a tech move the memory and CPU from the dead phone to the new phone. This is advanced work which I posted about such a service for Apple phones. This is not me making this up. You have to find a similar tech and company in your locale.
Read my example at https://www.cnet.com/forums/discussions/apple-iphone-data-recovery-extreme-conditions/
This can be very expensive work as you need the donor phone, the new phone and hundreds of dollars for the tech workers. After folk experience this they suddenly understand why backup is cheaper than recovery.
i would like to seek help on the matter that i had dropped my Redmi note 5 smartphone and it succumbed serious damages. i took it to the service center where they informed me that changing the display would solve the problem. however after replacing it with a new display they came up with another problem saying my motherboard has been damaged for which the display is not constant and keeps on blinking. changing the motherboard will cause a loss in my old data and due to my sheer negligence i had not taken the backup for some of the very important photos and flies which i am unable to retrieve now.
can somebody please suggest me a way how to retrieve my data back with the display not working. however the battery and other parts are working and the phone is getting charged also. the matter is very urgent to me, kindly help me out for which i will be sincerely obliged.