Got you covered.
First you want to check if your diode and driver is still working.
How you want to do it is,
1. get your diode and driver (No host needed) and set it somewhere still
2. Get your 2x 18650 or 8-12V power supply and hook the polarity up(more info)
Red(+) with the Contact Board of your pill
Black(-) with the pill, Just make them contact and touch, use electrical tape if needed
SO wire goes like this,
[Diode]<--[Driver/ PILL CONTACT BOARD (holding the driver)]<-- [Red(+)Wire]<-- [Battery Pos(+) Input]
For Black(-) wire
[Diode]<--[Driver/PILL]<--[Black(-)Wire]<--[Battery Neg(-) Input]
When it's all connected, it should light up INSTANTLY, and be careful not to look at the diode while doing that, lol. If all works it should look like this.
Mind these pics are NOT exactly like yours but it works the SAME way. For example, That red wire on the pics connected to the battery is the SAME as your SL Driver board. Just connect a little to the board and little to your battery (+ side). Use electrical tape if needed to hold together.
Also the black wire, connect that to the back of the battery (- side) and that you just need to make that touch the PILL, the driver holder (screw-into host) part. Make connect with it, ex. Tape it to it for contact.
Last pic, also mind the 4 batterys, that is for of you DONT have 3.7V batteries which you have so No worry on that one. It's basically like the drawing I drew, but connect that to the pill instead of the module, rest is all the same idea, Thanks.
PS. if it doesn't lite up, take a pic and shoot it in my PM I'll help you see if it's dead or alive, then focus on your host problems. Like I always said, diode first, the money is all on the diode