I can't flash and unbrick a311 "Download CPB Failed"

Mar 12, 2017
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I recently left my micromax a311 (3g) unused for a while, then when I recharged it I found that it's bricked, it only show logo and never open the system, and when I plug the charger it shows the battery sign but doesn't progress.

anyway I did hard reset from the recovery then downloaded stock rom Micromax_A311_V1_111114_(by_xdafirmware.com).zip from firmwarefile.com, but it show failed on writting the rom, here is the complete log:

20:12:24 CELL0: Software Version: Assembly - <V3.98_141222_02>
20:12:24 CELL0: Cell 0 USB address is: com37
20:12:24 CELL0: Start Download.
20:12:24 CELL0: Download Started...
20:12:24 CELL0: Downloading CPB:
20:12:24 CELL0: Init Connect Arg.
20:12:24 CELL0: Downlaod DA Start.
20:12:27 CELL0: Downlaod DA Success.
20:12:27 CELL0: Verify is Partition be Changed.
20:12:27 CELL0: Get Usb Status Success.
20:12:27 CELL0: Read YL-Parames Partition Start.
20:12:28 CELL0: Read YL-Parames Partition Success.
20:12:28 CELL0: Check between YL-Parames Partition and PhoneInfo Start.
20:12:28 CELL0: Check between YL-Parames Partition and PhoneInfo Success.
20:12:28 CELL0: Init BackUp Table.
20:12:28 CELL0: Read BackUp File Start.
20:13:16 CELL0: Read BackUp File Success.
20:13:16 CELL0: Mach Storage Type is Successful.
20:13:16 CELL0: startAddr 5f000000, format length 34b300000
20:13:23 CELL0: Format Device Success.
20:13:23 CELL0: Start Download CPB.
20:15:53 CELL0: Download CPB Failed.
20:15:53 CELL0: ERROR:1041
20:15:53 CELL0: DisConnect.
20:16:13 CELL0: Total download time elapsed: 3 min : 49 sec
20:16:13 CELL0: Downloading CPB: Failed!

anyone may have a hint about this problem plz :)
 

Sãthīs.Khanna

New member
Jul 14, 2017
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i also have same problem sir(download cpb failed) please help us...............:confused:
Did u used YGPD flashing tool try this. with proper instructions.
Frm thiz.. search on google.✓
Micromax Canvas A311/A310 Unbricking Guide from mthdev
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
You can see the results...open and follow the instructions.

:good: and see if it works then reply me first.