crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2861143:0crwdne2861143:0

Fourth generation of CDMA iPad 4. Available in 16, 32, or 64 GB models. Model Number A1460.

crwdns2934591:020crwdne2934591:0 crwdns2934593:0crwdne2934593:0

crwdns2933897:0crwdne2933897:0

No touch after digitizer replacement

I was brought an iPad 4 CDMA with a broken display. I ordered a replacement and when it arrived I installed it.

Everything went good with the install but there was no touch. I tried disconnecting and connecting it a few times and it did not help. I then hooked up the original broken display and everything worked so I called iFixit and they sent out a replacement.

When that one showed up I installed it and the same thing happened, no touch but the original display works.

There has to be an explanation for this, right?

What am I missing?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2942205:01crwdne2942205:0

I don’t know what I did different, but I got the display to work.

Thank you for the replies

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0

crwdns2933315:03crwdne2933315:0

crwdns2934221:0crwdne2934221:0
crwdns2931211:0crwdne2931211:0 crwdns2931215:0crwdne2931215:0 crwdns2934225:0crwdne2934225:0
crwdns2934057:0crwdne2934057:0

crwdns2933897:0crwdne2933897:0

I went through at least 4 digitizers to get one that worked properly on an iPad 5. The bad units partially worked — they had dead spots on the touchscreen. Never saw one be completely dead, but I suggest trying again. Make sure you’re getting the correct generation/model digitizer.

crwdns2934105:0crwdne2934105:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 1
crwdns2934285:0crwdne2934285:0

crwdns2933897:0crwdne2933897:0

I tried pretty much the whole display on both of them and nothing.

The home button that came with both of them does work.

I’ve double checked the model number, so I don’t think that I ordered the wrong part.

crwdns2934105:0crwdne2934105:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2933897:0crwdne2933897:0

Another possibility is that the flex connector is getting dislodged during re-assembly. When you pull up the digitizer check for damage to the flex cable. If it’s ok, then re-seat the cable and test with the unit open to see if you get any response.

I haven’t done gen 4, but on gen 5 the flex cable had to be folded just right for it to fit in without damaging it.

crwdns2934105:0crwdne2934105:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0

crwdns2934229:0crwdne2934229:0

sunruh crwdns2934231:0crwdne2934231:0
crwdns2936625:0crwdne2936625:0:

crwdns2936751:024crwdne2936751:0 1

crwdns2936753:07crwdne2936753:0 5

crwdns2936753:030crwdne2936753:0 6

crwdns2942667:0crwdne2942667:0 56