Octopus support please help me….

Hello, i have same problem here.
I try to repair imei with a b220 with box and now is dead, i buy another phone for read flash, but no luck, the phone is new and works fine but cant read the phone.

PD. After try repair imei of one of the phones, this is dead, please help me to revive.

Here the log:

Platform: LG MTK
Selected port: COM1
Selected baudrate: 115200
Selected model: B220A
Selected USB connection type
Please, disconnect battery and connect cable…OK
Phone found.
Setting power state…OK
Sending loader…OK
Synchronizing with loader…OK
Detecting NOR flash chip…OK
Reading info…Failed!

PD. THIS IS THE WORKING PHONE, OPERATION, READ FLASH, TRY TO READ FLASH FOR REVIVE ANOTHER PHONE DEAD AFTER TRY IMEI.

Platform: LG MTK
Selected port: COM1
Selected baudrate: 115200
Selected model: B220A
Selected USB connection type
Please, disconnect battery and connect cable…OK
Phone found.
Synchronizing with loader…
Failed to read loader version!

PD. THIS LOG IS OF DEAD PHONE, OPERATION READ INFO, DONT POWER ON AFTER REPAIR IMEI OPERATION WITH BOX.