Chosen Solution
i have a iPad mini and i change the battery today but after i finish changing the battery i check to make sure the iPad was OK and it was fine so i put the iPad back together and add back the sticky tape to my touch and finish closing up my iPad i then put the iPad back on my LCD removal machine it was set at 100F just for a few second to warm up the sticky tape and forget it after about 1 minute or 2 minutes i remember and take it back off and wait for it to cool after it cools i turn it back on and notice that there is no longer a back light do you think the heat kill my LCD? or something else is wrong?
Normally an over heated LCD shows a wavy light pattern on the edges. 100F is only ~38C and you only left it on for a few minutes. I don’t believe that would cause the problem. Also, if you use good tape like Tesa 61395, you don’t have to activate it with heat, just pressure. You currently have no backlight at all? The mini is very sensitive about disconnecting the battery before playing with the LCD connector. Could you have mistakenly forgot to disconnect the battery?
