Can the horizontal lines on an original Gameboy can be fixed or not yes or no then?

I've stumbled across your site by simply googling "attaching ribbon to lcd glass", and now that I see the work you are doing here, I have an advice that may help you with this white ribbon cable: It is a special cable indeed, and not of the same type as the brown one. I have successfully repaired dead lines on LCD displays in some devices, including my collection of vintage Motorola StarTAC GSM phones, for which the LCD modules are no longer available anywhere.
The trick in "resoldering" this type of ribbon without damaging it, is using an iron with temperature control. The bonding material on those cables melts at 190 degrees Celcius, and I had good success reflowing the glue when I set my Weller soldering station to 205 degrees. Simple soldering irons without temperature control heat up to more than 300 degrees, and this will destroy the cable by completely melting it, when I first tried doing this with a regular iron I had the same results as you are showing here.
Anyway, I won't be digging into the subject here, but if you would like more info or any tips, feel free to send me an email, I would be glad to help.
Take care. alt="How not to fix dead horizontal lines on a DMG-01">

Hi,have a look here.lots of guides ect

Nintendo Handheld Repair