repair imei oppo A71 problem

octopus82

Hello

I'm new ufi user, I want to repair oppo A71 imei; but I get this error

AUTH 
info: MTK, version: 1
BROM version[0]: 7.1621.1.0
Loading DA: MTK_AllInOne_DA.bin (5.42 MiB)
 version: 3.3001.00.00, start addr: 0x40000800
Connecting to BootROM...
 Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
 Hold the VOL UP to force MediaTek BootROM.
 Scanning BootROM or Preloader port... Done.
 Detected OPPO PreLoader USB VCOM (Android) (COM8)
 Connection status: EHCI:HUB:HUB:USB 2.16 High-Speed
 USB Driver: [MediaTek Inc.] usbser, version: 2.0.1136.0, date: 9-1-2011
Connecting Bootrom... Done.
Sending Download Agent... failed
Platform: MT6755_S01, Hw ver: 0xCB00, Sw ver: 0x0001
 Secure config: 0x00
Error: 4001 (S_FT_DA_NO_RESPONSE)
[DA] DA didn't send response data
 Try to select another "DA" loader and try again

madgoeslim

octopus82 Hello,
Sorry for slow respons.
Already made tutorial How To Repair encrypted Imei Oppo A71,
You can follow that. I guess I made it pretty easy guide, including picture and success report.

octopus82

no one to answer ? you just sell the tool without help your customer ??

octopus82

madgoeslim Thank you for answering

When I do identify I get this error; I've tried on 2 pc's

BlockquoteAUTH
info: MTK, version: 1
BROM version[0]: 7.1621.1.0
Loading DA: MTK_AllInOne_DA.bin (5.42 Mi😎
version: 3.3001.00.00, start addr: 0x40000800
Connecting to BootROM...
Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
Hold the VOL UP to force MediaTek BootROM.
Scanning BootROM or Preloader port... Done.
Detected OPPO PreLoader USB VCOM (Android) (COM8)
Connection status: EHCI:HUB:HUB:USB 2.16 High-Speed
USB Driver: [MediaTek Inc.] usbser, version: 2.0.1136.0, date: 9-1-2011
Connecting Bootrom... Done.
Sending Download Agent... failed
Platform: MT6755_S01, Hw ver: 0xCB00, Sw ver: 0x0001
Secure config: 0x00
Error: 4001 (S_FT_DA_NO_RESPONSE)
[DA] DA didn't send response data
Try to select another "DA" loader and try again

madgoeslim

octopus82 Detected OPPO PreLoader USB VCOM (Android) (COM8)

Hello,
For mediatek secure bootloader, especially MT67xx family, you have to connect it in BROM mode (known as "MTK USB Port" in DevMan) for Identify as well as for Flashing procedure.
Because device connect to BROM mode, so you have to load stock firmware too, at least load scatter and preloader for mapping flash storage and dram.
For Oppo mediatek device, you can force it to Brom mode via hold down vol-up button.
If it fails, try to hold vol up + vol down together while connecting USB data cable.
Gud Luck.

octopus82

madgoeslim

I try to flash it with scatter via ufi , and that's what I get

AUTH info: MTK, version: 1
BROM version[0]: 7.1621.1.0
Loading DA: MTK_AllInOne_DA.bin (5.42 Mi😎
version: 3.3001.00.00, start addr: 0x40000800
Connecting to BootROM...
Power off the phone, disconnect and reconnect the battery(if possible) and connect USB cable...
Hold the VOL UP to force MediaTek BootROM.
Scanning BootROM or Preloader port... Done.
Detected MTK USB Port (COM58)
Connection status: XHCI:HUB3:HUB3:USB 1.16 Full-Speed
USB Driver: [Sony Mobile Communications] usbser, version: 2.0.0.5, date: 8-31-2016
Connecting Bootrom... Done.
Sending Download Agent... failed
Platform: MT6755_S01, Hw ver: 0xCB00, Sw ver: 0x0001
Secure config: 0x00
Error: 4001 (S_FT_DA_NO_RESPONSE)
[DA] DA didn't send response data
Try to select another "DA" loader and try again

octopus82

madgoeslim I did with all butoon combination , but still get this error

Blockquote Scanning BootROM or Preloader port(30 s)... Device detected in DA boot mode, press and hold power for 10 seconds to exit DA mode
Error: timeout

madgoeslim

octopus82 Unless you can force device to BROM mode, it will always failed to Identify, as well as for flashing procedure.
You can check at first, the volume button, maybe it damaged or not.
If the volume button ok, than you can force it via tespoint methode, by shorting the CMD resistor.
Unfortunately I don't have the ISP, hope someone find it, and share it here for you.

Jane

@madgoeslim
Can you please explain what is the CMD resistor?Thanks