Big problem with Huawei Ascend G300 - please help

[Guest hydromielvs]

Hello guys, this is my first post here, I would be really, really grateful if you could help me with this one.

I have Huawei Ascend G300. It was working really bad and slow lately (I did factory reset, didn't help) so, yesterday I installed custom Rom - CyanogenMod 10.2, JB 4.3. The installation went smoothly, the phone was working fine after that, I installed all the apps. 

But after a while, the phone just turned off. Just like that. And now it seems to be "dead". Now I can't turn it on and it doesn't recognize when I plug in the charger.

 

Only later I found about the Samsung/Hynix flash memory issue. I didn't have a clue about that one when I was installing custom rom, and I don't know which flash memory I have ('cause now I can't turn on the phone).

Is there anything that can be done, any suggestions on how to make the phone work again?

Thank you very much

[Guest Razor3000]

That's a common issue with hynix, it's dead. If you have warranty they fix it.