[Xiaomi Redmi Note 3 Questions & Answers] MaveFL:
Hello everyone!

So basically I have a Redmi Note 3 that was sitting somewhere on a shelf in the past few years and I decided to try and revive it. Its charging board was basically damaged to the point that it was barely even working anymore but, nonetheless, I still tried to plug it in to see if it turned on, which it did, but it only showed the Mi logo for a second, then it turned off, then it showed the Mi logo again for half a second and turned off again and the red LED was blinking, which I assumed it meant that the battery was empty, but since the charging port was barely working as I mentioned earlier, I couldn't be arsed to try and charge it, so what I did was to look online for a charging board replacement part, not an easy task since it's an 8 year old phone which is basically ancient at this point but nevertheless I did find one on Aliexpress for like $7 I think.

Fast-forward about 3 weeks and the item arrived. Opening the phone was a piece of cake since I've already done it some years ago to replace the back panel (side note, the phone is the dark grey variant, which had a black front, but the replacement back shell was gold so it ended up being a one-of-a-kind black and gold combo which I think looks really neat) and the battery (which was an aftermarket that proved to be of poor quality so I reverted back to the original one).

Anyway, after replacing the charging board I tried to charge the phone, and the same thing as before happened. Mi logo for a second, screen off, Mi logo for half a second, screen off again and then the red blinking light. Again, I assumed that it was just the battery that needed to be recharged so I left it there for about an hour. Ay, and here's where the fun begins. Even after an hour of charging the phone still wouldn't turn on, it was just blinking the red light. I tried to force reboot it with the power button (which is also pretty toasted), again, same result. And again, and again, and again. Same thing. Used a different charger, same result. Tried to plug it in to the computer, same stuff, and the PC didn't even recognize it, not even in Device Manager. I plugged into different USB ports, nothing. I didn't try to use a different cable since it's the only microUSB that I have but I doubt it would've made any difference anyway.

So now I'm left with the phone in the red blinking LED state and after doing some digging I found out that this indicates that the phone is in the EDL mode, which basically meant that I had to test point it so I opened the phone and tried to short 2 pins on the motherboard, but unfortunately after many tries this didn't work either. The phone simply isn't recognized by the PC.

And then after watching some more tutorials I noticed a weird thing and pay attention to this, which is that in every video the phones don't show any Mi logos when plugged in, their screens are completely off, they just have the red blinking lights. As I've described earlier, my phone shows the Mi logo twice before entering that red blinking light state, which is even more confusing because after trying various button combos I found out that I can actually enter fastboot mode, and I got happy because I thought I finally got somewhere with this phone, only to realize that even in fastboot mode my PC still doesn't see it. And before any questions, yes, I do have all the drivers installed, my main phone (Nothing Phone 1) works just fine. My PC is on Windows 11 if that's relevant.

Is there anything I can do to revive this phone apart from replacing the motherboard? I know it's an 8 year old phone that probably not many are still using but I thought it's worth giving a shot. Please let me know if you need any extra details.

Later edit: I changed the USB cable just to make absolute sure, again, same results.