Reviving the good old htc one x

So I was searching for something at the bottom of my drawer and I found my old htc one x. I always liked the phone but it died on over a year ago (replaced it with a G3). Basically I let the phone battery reach zero and the phone turned off and no matter what I did it never turned back on. When I plug it the red light flash for a bit then nothing. I had zero issues with the phone previously. Is there anything I can do to revive my old phone? I still think that if my one X was working I would still be rocking it to this day.

Coolpad E501 EU unbrick, reviving

Hi
I have Coolpad E501 EU (other names: Modena, Y76, Sky). It's dual sim, stock android 5.1, rooted, stock recovery.
After last mini update (9,2 MB) coolpad logo is showing and then it goes only to recovery. Phone was rooted using KingRoot app, and then applied update so I bet it was a mistake to do so.

I have second one same Coolpad phone - working, rooted, stock android, stock recovery. So it might help in restoring bricked one.
I searched almost everywhere on the internet looking for stock roms, recovery or something that I can flash.
I tried using YGDP tool with 4.4 official rom that I found but no luck. I get the message "Bootloader is old" in logs.
Tried to do backup with nandroid of working phone but it's making backup for custom recovery (cwm - .tar or twrp - .wim). My phone doesn't have one.
Recovery has an option to apply update from zip. Last update that messed up is here:
ota.coolyun.com/ota/Android/Coolpad%20E501_EU/P0/5.1.222.51.P0.151216.Y76_U00_5.1.222.61.P0.160510. Y76_U00/update_1464055522221.zip
I dont care about data., only working system.

Anyway I appreciate some help how to bite that, any ideas how to revive that phone. I was trying to do a system.img backup of /system partition in working phone, but no luck, partition is in ext4. I thought I can restore that using adb.
I will answer any questions if something I wrote is not clear. I'm not afraid of adb, flashed many phones, so I'm not looking for step by step tutorial, only to someone point me in right direction to solve this problem :)

Thanks for any help.

No Signal on AIRTEL after Reviving Hard Brick

Hello guys, sorry for posting in this forum.
But I am facing a serious issue in my yureka.

MY PROBLEM IN A NUTSHELL,
I have revived my Hard Bricked Yureka by Flashing CM12 Fastboot images, Now I don't get Signals particularly on AIRTEL SIM, I also replaced with new AIRTEL SIM still doesn't works. Kindly provide a solution. AIRTEL is my primary Sim.

MY PROBLEM IN DETAIL
I had hard bricked my yureka by accidentally disconnecting yureka during Fastboot flashing of CM12 Fastboot images from RR 6.0 ROM.
Then after following many guides on reviving hard bricked yureka here and on XDA, guide here on yuplaygod forum by Mr. Naved Ansari has worked for me.

But now I'm facing a very strange issue, Yureka is as normal as it was before except AIRTEL doesn't gets any signals.
Then I tried many combination like flashing Kitkat, Marshmallow, hard brick ing multiple times and reviving multiple times. Still I don't have the success. I'm getting signals on other Sim but not on AIRTEL. Suspecting AIRTEL SIM is a problem, I got new Sim of AIRTEL but still it is not working. During many trials I had it had worked for once on CM12, but after i restored TWRp backup of updated CM12. 1, it's gone again. I'm finally reviving my yureka by flashing CM12 Fastboot images.

Kindly help, AIRTEL is my primary Sim and I can not let it go.