SD Card Service Repair

[Nikkisom]

Guys, I need help. 

I've done my homework on DIY methods to restoring corrupted SD cards but little to no use. I still can't use it on my phone. Are there any trustworthy service shops that I may know before going out? 

[ProCo]

Thank you for reaching. Nikkisom, may i know where did you purchased your SD Card? You may try this steps, go to Settings, click Battery and device care, click Diagnostics then click SD Card button. I hope this process will help you identify the issue on your SD Card. Keep safe!

[Nikkisom]

Unfortunately, that only gets me so far. It's still not working.

[ProCo]

What type of SD card did you use?

[Nikkisom]

I got it from a friend as a gift. It's a Sandisk Micro SD

[ProCo]

I guess your friend got it from online shopping.

[Obviou_sly]

Remove SD card and slide the tab notch at the side of it to enable write.

[Obviou_sly]

Or format your SD card

[Nikkisom]

Haven't tried that but that'll be my last option because I have important files inside.

[Nikkisom]

I can't seem to understand "tab notch".