In addition to the info I shared above about how to eliminate the 'touch' function for the OSD when installing a Funnyplaying IPS or ITA laminated screen, today I have another tip.
Before I did the mod on my GBA, the power led was flickering green to red and would immediately go red if I touched the power switch in any way. So, I got out the solderin' shit, some q-tips, 91% IPA, and a can of CRC contact cleaner. I dismantled the power switch and gave it a good cleanout, then put it back to together. Tested, worked.
Then I did the screen mod, popped in some rechargeables, and started actually using that GBA. And, from about the 2nd or 3rd time I picked it up to play, I started seeing the power led flash a little red here and there. Since I'd just cleaned the switch, that bothered me a lot. I was about to pop the shell open again, and when I opened the batt door I noticed one of the AA's was off kilter, i.e. not parallel with the other. There's too much room in there! Funnyplaying wants everyone to buy their UCB-C rechargeable LiPo mod, so they don't put a divider inside the battery compartment like there was on the real GBA (and many other things using two AA's), and there's just enough room for one battery to get a lean to it. So, I made a divider. I used a furniture shim, which you can get at hardware stores, Lowes, even Walmart. It's a thin plastic or hard rubber wedge, used to balance out uneven wobbly legs on pieces of furniture. Using a box cutter knife I was able to make one that was just thick enough to sit between the batteries and keep them in place, without impeding the batt door closing properly. Result ... power led is rock solid green now, even during on-off cycling.
Before I did the mod on my GBA, the power led was flickering green to red and would immediately go red if I touched the power switch in any way. So, I got out the solderin' shit, some q-tips, 91% IPA, and a can of CRC contact cleaner. I dismantled the power switch and gave it a good cleanout, then put it back to together. Tested, worked.
Then I did the screen mod, popped in some rechargeables, and started actually using that GBA. And, from about the 2nd or 3rd time I picked it up to play, I started seeing the power led flash a little red here and there. Since I'd just cleaned the switch, that bothered me a lot. I was about to pop the shell open again, and when I opened the batt door I noticed one of the AA's was off kilter, i.e. not parallel with the other. There's too much room in there! Funnyplaying wants everyone to buy their UCB-C rechargeable LiPo mod, so they don't put a divider inside the battery compartment like there was on the real GBA (and many other things using two AA's), and there's just enough room for one battery to get a lean to it. So, I made a divider. I used a furniture shim, which you can get at hardware stores, Lowes, even Walmart. It's a thin plastic or hard rubber wedge, used to balance out uneven wobbly legs on pieces of furniture. Using a box cutter knife I was able to make one that was just thick enough to sit between the batteries and keep them in place, without impeding the batt door closing properly. Result ... power led is rock solid green now, even during on-off cycling.
you to them 
