[Q] Stock 5.0.2 Factory Reset Issue (loop? - How bad did I mess up?)

A little background and info before I begin- The Nexus 7 in question was running absolutely stock unrooted Android 5.0.2. Recently the battery was going downhill FAST with spikes on the battery graph as well as falling from ~35% to 5% instantly so I figured I would look for a new battery. There weren't many batteries out there that I was too impressed with (at least the reviews of said batteries certainly led me away from them) so I figured I would at least try Asus and see if they have a battery replacement service. They do, and mentioned that I will lose all data on the device. In an attempt to make their lives easier I asked if they would like me to do a factory reset for them, customer service representative said yeah that would be great.



SO... the real issue: I do the factory reset, and it stays on the "erasing..." image for 3+hrs, I was a little concerned but figured my best bet was to give it a little longer and see what it does. I go back to it ~30mins later and it looks as though it somehow got into recovery mode (stock recovery mode) and stayed there. Because I was curious (and impatient) I interrupted it and performed the following from this point:

• erased cache from stock recovery


• rebooted into fastboot menu


• tried to reflash using the .bat file included in the nexus factory images from google but this failed on writing 'boot'.


• tried then erasing boot, bootloader, system, cache, userdata- all failed.


• new error includes "write failed" error.


• on ANOTHER attempt to erase, any attempt to do so states that the partition does not exist (for all images/partitions).

So... has anyone experienced any write failed issues before? I cant erase anything OR write now apparently...

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