Dubao 758 problem

[Velko]

Dubao 758 problem comunikation .
If you phone power on read general information np.
Phone detected, wait...
Hardware version: MT6226, E02
Hardware version: TELSDA26_05C_HW
Software version: MAUI.05C.W06.16.MP.V
Software date: 2005.04.12
Barcode: MT012345678901234567
imei: 358181000047940
But after try to format FFS
COM6 [VCP0] selected
Phone should be Switched OFF !
Press and HOLD Power button now !
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
Any have idea?
Pin out
there is 4 dots:
1 2 3 4
Gnd Rx Tx
Help
Thanks

[InfinityHelp]

hello!

do hold power button pressed long enough?

[Chandreshswami]

Dubao 758 problem comunikation .
If you phone power on read general information np.
Phone detected, wait...
Hardware version: MT6226, E02
Hardware version: TELSDA26_05C_HW
Software version: MAUI.05C.W06.16.MP.V
Software date: 2005.04.12
Barcode: MT012345678901234567
imei: 358181000047940
But after try to format FFS
COM6 [VCP0] selected
Phone should be Switched OFF !
Press and HOLD Power button now !
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
error: boot initialization step-2 failed: 00
Any have idea?
Pin out
there is 4 dots:
1 2 3 4
Gnd Rx Tx
Help
Thanks


TO REPAIR dUBAO 758 FOLLOW PROCEDURE OF REPAIR CECT 199

BEFORE FORMATT PLEASE REMOVE SKYWORKS MODULE ( BELOW kEYPAD )

THAN FORMATT IT

[Velko]

Please more information.
PA module ?
Send me more information
Thanks

[InfinityHelp]

hello Velko!

sky module is little PCB with MCU named "skyworks".
it is easy to remove it and make needed operations with phone.
after all is done- set module to original place and assemble phone