How to repair 6680 DEAD using MT Box?? try to flash...

Processing File: RM36_4.050407_B5.C0R
Boot...
rap3gv2_2nd.fg
RAP3Gv2_algo.fg
helen3_2nd.fg
h3_sam_nand_gbbm.fg
Erase[37.21 MB]...
Waiting response for 90 Sec...in 40.45s
Flash[20.23 MB]...in 66.80s
* * Processed file in 115.09 seconds
Processing File: RM36_4.050407_B5.v02
Boot...
rap3gv2_2nd.fg
RAP3Gv2_algo.fg
helen3_2nd.fg
h3_sam_nand_gbbm.fg
Erase[14.98 MB]...
Waiting response for 90 Sec...in 1.92s
Flash[3.71 MB]...in 17.92s
* * Processed file in 27.75 seconds
* * * Phone flashing done in 2:29 minutes
Post Flash serial tunning of phone....
Pooling mode for full factory set...
Phone not responding, try to set manually!

Remain Dead!
Any Solution?

affiliation 8228351@qq.com

Flash with last version of 6680 and last version of MT-BOX maby your problem solve.