[shankar1790]

device Q440 mt6737t cg sky hw 5.0 sw 5.0
( Micromax Q440 CG5 HW 0116 V5.0 SW V5.0_1330818) Customized H/W and S/W Ver
i flashed with different release firmware dated( vs0117 270818)  with firmware upgrade option. Then my screen goes blank (everything working except display)
i think lk.bin is not compatible with my phone. but i cant find the exact firmware of (vs0116 130818)

Note - this is secure boot chip 
thank you

I have downloaded auth file for this device from this forum, and dl agent from official rom. and format all with bootloader but when i try to reflash official rom i have flashed before. it asked for auth file. then i select auth file from this forum , it gave error.
and When i connect device to pc it stuck at usb serial device PORT not in preloader mode.

please helpw

[shankar1790]

i mistakenly format whole flash with bootloader. and now the device wont flash auth error. the device stuck at USB SERIAL DEVICE Mode and does not goes to preloader port.
i m unable to flash. help please i new to mtk device

[X3non]

i mistakenly format whole flash with bootloader. and now the device wont flash auth error. the device stuck at USB SERIAL DEVICE Mode and does not goes to preloader port.
i m unable to flash. help please i new to mtk device

disconnect / reconnect the battery of the phone then retry flashing
also update what the device gets detected as in device manager using the guide @ https://forum.hovatek.com/thread-16839.html

[shankar1790]

see this pic also

[X3non]

...

blank reply

[shankar1790]

blank reply

its my phones browser problem.BTW
the device is still reconised as usb serial device port. i already install driver many times just see in pic.



still same

[shankar1790]

after install vcom driver manually its still recognized as usb serial device
But installing mtk driver auto installer from this forum, the device now recognized as mtk usb port no preloader.
MY Question
1. Is it auth file error due to formatted all with bootloader (secure boot device)
2. Is shorting GND to KOLO, COLO OR KCOLO pins put this device in preloader mode.( not written in Motherboard of device)
  OR directly connecting RX & TX pin to D+ & D-  PINS. (i find and connected with pc but usb device not recognized.why, is it need dongle)
 I tried with SWD TOOL but it too give auth error
see pic

h

[shankar1790]

what is EFUSE In SWD TOOL and enabling it could help or not.
how to enable it on SWD TOOL.
I have downloaded one from this forum but for different device i think for infinix.
can i customize it and enable in SWD TOOL OR TECHNO FLASH TOOL (but HOW) please tell if it helps
waiting for reply

[shankar1790]

I dont understand why this auth file give error because i used same auth file for formatting the device. Even ii used this auth file for flashing before i formatted bootlaoder.
will miracle box 2.82 crack (without box) work for RX ,TX PIN connected with D+ & D- PIN. If yes then tell me wich pin to select in micracle box pin scan for flashing.

[X3non]

But installing mtk driver auto installer from this forum, the device now recognized as mtk usb port no preloader.

driver is fixed, successfully flashing preloader will cause the device to be detected as vcom preloader

1. Is it auth file error due to formatted all with bootloader (secure boot device)

it's the reason why it's not a good idea to format (all) in secure boot device. if you do then you risk face more errors usually requiring auth file

2. Is shorting GND to KOLO, COLO OR KCOLO pins put this device in preloader mode.( not written in Motherboard of device)...

your device is getting detected just fine, you don't need this

what is EFUSE In SWD TOOL and enabling it could help or not.
how to enable it on SWD TOOL.
I have downloaded one from this forum but for different device i think for infinix.
can i customize it and enable in SWD TOOL OR TECHNO FLASH TOOL (but HOW) please tell if it helps
waiting for reply

you can't use SWD tool for phones with secure boot not made by transsion holdings esp when they require auth file

I dont understand why this auth file give error because i used same auth file for formatting the device. Even ii used this auth file for flashing before i formatted bootlaoder.
will miracle box 2.82 crack (without box) work for RX ,TX PIN connected with D+ & D- PIN. If yes then tell me wich pin to select in micracle box pin scan for flashing.

disconnect / reconnect the battery of the device
ensure you are using both the right da and auth file for the device model ; download @ https://forum.hovatek.com/thread-23525.html
then retry flashing using spft, you could try all different modes ie download only, firmware upgrade, format all + download