[Android Q&A, Help & Troubleshooting] alec.claire:
The whole point of XDA is to learn and not to go to the service centre.

1. First of all, shorting any test pins is NOT necessary for Qualcomm SM7125 Snapdragon 720G.

2. I've managed to make my PC recognise the phone. In the homemade EDL cable I shorted black and white cables instead black and green and that did the trick. I even checked on multimeter and with standard USB cable schematics and in fact the white is D- not D+ so it seems that this particular phone needs GND + D- (black and white) shorted cable to put it in the EDL.

So - first step is pressing and holding at the same time Vol- and Vol+ buttons and then connecting the EDL cable - only then it shows up in the Device Manager. Otherwise the phone won't be recognised by the computer at all.

The phone appeared as unrecognised device in Device Manager. Then I changed the cable for other, ordinary not modified cable. Then.. the required Qualcomm hs-usb qdloader 9008 were nowhere to be found. So this is what I did:

Driver for Qualcomm hs-usb qdloader 9008:

Link to the driver from the viedo's description - https://mega.nz/file/z801XYDL#ePt4ojid5RGG9wM_dccBf4BEZ1m4BefQFZPtWAh6UF4

Note that this driver is different that what the guy in the video installs. IDK why. However, I didn't use .exe to install just manually select driver and.. then I updated it via Windows Update. Only then in appeared in Device Manager in the correct Section meaning Ports under the proper name "qualcomm hs-usb qdloader 9008".

Here's another source for the driver:

QDLoader HS-USB Driver_64bit_Setup

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com

So, now the phone has open EDL port - at least it seems that way, cause it appears in the Device Manager as "Qualcomm hs-usb qdloader 9008" when connected with normal cable.

3. So, this is where I'm stuck now:

- when running "Minimal ADB and Fastboot" and typing either "adb devices" or "fastboot devices" nothing appears

- when it hit Vol+ + Power button phone instead of going to the fastboot again displays "The current image(boot/recovery) have been destroyed"

Came as far as here: https://www.ytechb.com/download-msm-download-tool/

I have the .ofp file in the same folder as MSM Download Tool V3.0 but I get error "The format of the flash package is wrong or the flash package doesn't match the download tool.".

Download & Install MSM Download Tool - Flash Tool For All Oppo Devices

MSM Download Tool: It is a Flashing Tool That is used to Flash Stock ROMs Of All Models of Oppo Devices Such as a7, a71, a3s, a37f, f5, etc.

youtech.ooo

Any ideas how to reflash stock ROM or anything really?

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From what I managed to establish is that.. I need a working MSM Download Tool.

All the available downloads simply don't work or give error after error. The one downloaded in one package with the proper .ofp file for my phone wants a login. Some YouTubuers what to pay them for the logins, or demand subs and to send them photos of the subs. Jesus Hussein Christ! Something as simple as flashing a stock ROM shouldn't be this burdensome. WTF is going on with Oppo/Realme/OnePlus or Qulacomm?

Is there any working MSM Download Tool out there? Wasted a whole day here.