How to troubleshoot iPhone Screen problems

How to troubleshoot iPhone Screen problems

iPhone screen is not responsive and intermittent touch / ghost touch

Hi There

This article is about ” How to troubleshoot iPhone Screen Problems” and how to fix it if possible by DIY or profressional iphone repairer. Some of the problems you can fix yourself , some of the problems you may need to bring the professional phone repairer. Any information this article is educational / guide only. 

Proceed at your own risk thank you 

Reading time : 5 minute – part 1 iPhone screen not responsive

This iPhone Screen Troubleshoot guide can be applied to

iPhone, Android Phone, iPad, Android Tablet, Tablet Computer with touch screen

My name is L.T and Im professional iPhone / Android Repairer at CPRepairsLab Melbourne. 

How to Troubleshoot iPhone Screen Problems

iPhone screen is not responsive and intermittent touch / ghost touch Or

My iPhone still vibrating but there is no display

This is the most common question that we normally receive from customer

Symptoms:

  • Whist typing the character not display properly, have to press very hard or sometime could not press at all
  • Some area in my screen not touchable and cant be used
  • Ghost Touch: Sometime my screen press itself or Self-Calling someone without open up the phone
  • iPhone still vibrating but I cant see anything

Cause of the problems

  • (1)Software Bugs / Software Glitches / iPhone lags by short of memory or storage
  • (2)Screen not installed correctly / not sit properly / Connector Cable loose
  • (3)IC touch controller (motherboard / logic board)  problems
  • (4) External Screen Damaged / Cracked Screen 
  • (5) Internal Screen Damaged / Screen Cable Connector damaged due to impact or water damaged

How to fix your iPhone unresponsive screen

Before starting doing anything please back up your phone if possible. It is just an security method not losing your precious data

iPhone Software Bugs / Glitches 

-Try to upgrade your OS to the latest one

– Lighten up your storage by removing some pictures / video / unnecessary  apps. I prefer to have at least 10% free storage. Example if you have an iPhone 64GB please allow 6.4GB free of storage. 

Screen not installed correctly / not sit properly / Connector Cable loose

This problem needs to open up the phone and inspect the Connector Cable inside, make sure all sit tight and secured. If you are confident enough to open up your phone this can be a DIY project. If you are not sure what to do please give it to your local phone repairer.

IC touch controller (motherboard / logic board)  problems 

This is a severe problem all other troubleshoots must be carried before concluding IC touch not working. Some common iPhone models such as iPhone 6 Plus had a Gray Bar of Death –  the IC touch controller inside logicboard needs to be replaced. 

Some other model we need to do logicboard inspection (no fix – no charge) at CPRepairsLab or any motherboard component repair shop. There is always 50/50 chance of your device can be repaired

Solution : Let Phone Repairer have look at this and get correct answer

External Screen Damaged / Cracked Screen 

This is the most obvious problem that we can spot. Your screen consist of 3 different   layers : Protected Glass – Digitizer / Projective Capacity XY array and LCD / OLED display layer . Any of these layers broken can cause your screen not working from : Line on the screen, broken glass, touch not responding or Discolouration

Pictures for illustration

Solution: Replace new Screen 

Internal Screen Damaged / Screen Cable Connector damaged due to impact or water damaged

This problem can be seen as – please refer the to the illustrate pictures above

  • Internal Screen damage (No external glass broken or  outer glass seems ok) no display at all or there is display but the touch is not working.

                       The Flexi Connector or Weld  (fuses sensing array to flex connector) has 

                       been damaged / broken inside . What is the cause Normal drop can 

                      cause this damaged as impact break the internal cable or liquid causes  

                      short circuit to the touch cable 

 

Solution : For impact cause , the new screen should be ok. For Liquid Damaged Screen further test / check may need to perform

iPhone Screen Replacement in Melbourne, Come and get your phone screen fix now

Have More Question - Call us now