Nexus 5 Hard Brick situation

My Nexus 5 was drained off battery and was not taking charging suddenly. I entered the hard reset mode( power+volume down button) and accidently did a "restart bootloader". Since then my phone has been hard bricked! I cannot enter into recovery mode as well( power + volume down button). But I am sure that if I can get the bootloader running somehow, my phone will be back. I am sure it does not have any grave hardware issues as such. But the maintenance (service) center says , they will need to replace the motherboard, which is too costly for me.

Can anyone give me any pointers of how can I get my phone working again?

Snapdragon or Exynos S7. Please let me explain my situation.

I am in the USA and I am on Cricket Wireless. So I have to buy the phone at full retail price. AT&T said that they will unlock it for me if I buy it at full retail price.

So I don't know if I should go with the Snapdragon or the Exynos version.

The Snapdragon version is about 0 from AT&T. While the Exynos version is 4.98 from amazon. The Exynos version is also the international version and I do go to Europe, Japan, and New Zealand. I don't need the LTE bands. 18mbps on HSPA+ plus is good enough for what I need. I just need it for directions and web browsing.

My biggest concern is which model is the most third party ROM compatible. If I buy this phone then I need to keep it for several years; and let's be honest most Android vendors don't really update their phones. So at some point I will need to put a third party ROM on it to extend the phones life.

The SuperMan-Rom appears to be the popular third party ROM for the S7. Is the SuperMan-ROM compatible with the S7 (non-Edge)?

So based all on of these variables which S7 model should I buy?

Thanks in advance! :cool:

Hard Brick LG L5 CM 12.1 Life Or Die situation

hello guys yesterday i was searching for a new rom and i found cm 12.1 after the flash the phone doesnt pass cm android it reboot and i cant enter to twrp recovery and i cant get the emergency mode to flash it i dont now what to do now :(:(