of course you can do it! <-- there ya go :)
And here's a little more info- The battery I got, well it SAYS it's the right one, it fit it works, but only charges to 80% so it's a fake :( - wished there was a way or a place to know you are getting the right battery.
Other thoughts:
not sure which video I watched but it mentioned a TINY screw under a label between the SD and the Simm. My eye's arn't so good and I tried VERY hard to remove that screw ... metal shavings came out. I was bummed, I thought I had totally stripped the screw. So in desperation I tried popping the phone apart without removing the screw. Well, my 1520.3 didn't have a screw there at all! And by how hard it was to get apart I think they decided the screw was not needed.
I purchased this kit:
https://www.amazon.com/gp/product/B0...pUvbUpU3639143 very pleased with it.
After the screw removal story above, the next scariest thing was the battery is held in by double sided tape, and I was concerned I'd break the screen. I wound up using an old simm credit card (more flexible than a credit card), and used a blow dryer to heat up the battery to loosen the glue... shoving the credit card in slowly, Came apart no problem... just don't rush it!
Re-assembling - I forgot to put the big black sticker back on, but after snapping the phone back together, it seems to work fine with no rattles.
Oh and I didn't replace the double sided tape either.
Not sure what size screw driver I needed but the kit i mentioned has everything you'll need.
