Can I just replace the glass on my Galaxy phone?
This is a question we get all the time regarding the Samsung Galaxy S3/S4 phones. Most consumers just assume that if their glass is broken it is a easy and cheap repair to do. Unfortunately, the process for changing just the glass is not only time consuming but unless the proper procedure is followed it can lead to more damage to the phone than was present at the start.
Problems from faulty “glass only” repairs can be as follows:
What is the correct way to replace the broken screen?
The proper procedure for the glass only repair would require a hot plate and autoclave, if you have no idea what those are or where to get them we would advise against doing the glass only repair. Some local shops or individuals offer to replace the glass only and even in those cases they are either using an improper adhesive (3M double sided tape) or are leaving out the all too important optical adhesive layer between the LCD and glass that prevents the flexing/markings stated in the list above.
The only way to ensure that the repair is done correctly is to replace the entire front assembly. That includes the LCD and glass in one entire unit and is guaranteed to work perfectly and not have any indication that a repair was even performed. This is the same way that Samsung refurbishes or repair units from warranty exchange. The quality of parts used in this type of repair can also be controlled better, as you can test each individual front assembly unit to keep defects at a minimum.
Full assembly repairs also require less time to perform and can be done while you wait. While it is still not a repair we recommend for beginners it can be done by a trained technician or someone familiar with the inner workings of a smartphone. In order to guarantee that the repair is done appropriately we advise you get a trained technician who is well versed in the inner workings of the device and not a friend or coworker. We also suggest that you use a retail location due to the warranty that is associated with the repair that covers both parts and labor. We hope that this information is useful and will guide you in the process for getting your Samsung Galaxy S3 or S4 repaired.