I opened the back panel and as given in the guide I shorted the pins after plugging into laptop keeping volume up and power button pressed
---------- Post added at 03:41 AM ---------- Previous post was at 03:22 AM ----------
Got into fastboot.... But no flash happening. What to do? Flash after qfil n regular flash all not working. Please help. After USB connection then shorting of points the device gets into fastboot.
@brickedmobile. Please follow each and every step in the perfect order, as given in this guide. I suggest you read it twice, before actually performing these steps.
(And don't forget to install fastboot drivers for Yureka. For that, you'll need to install a software "pdanet". It'll install the drivers. Once installed, close the application "pdanet"; because we just need the drivers from it)
---------- Post added at 03:18 AM ---------- Previous post was at 03:14 AM ----------
Bro, I said I used QFIL method in both ways, without shorting of pins and with. But same error.
By getting into fastboot using memory card method and flashing TWRP. I tried to flash the official OTA CM12 (which would must contain all updated partition as of it is intended for CM11), but I couldn't flash it by TWRP and also not by official Cm12 recovery. Then I just tried to do sha1sum of file and what I saw is that, the sum changes every time (even when I didn't rebooted recovery or changed any thing). Does this mean eMMC is dead or corrupt on HW level.
Some Background of Bug: I have seen this bug, a few times when my storage is almost full or some big files are being moved. Like crashing of facebook on error of Memory block, whatsapp history corruption and apps not showing or always crashing until reinstalled and most common bug for me, rebooting of phone on un/installation of apps.
And bro, how can I use JTAG?
From the symtoms it seems possible that the emmc has hw problems. But, first tell me what exactly did you that bricked your phone?
Moreover, i'd recommend you go into fastboot mode (no, not recovery) from the sdcard and follow the procedure and guide i've recommended to 'brickedmobile' above.