Guide with all the steps necessary for you to change the antenna of the Sony Xperia Z yourself.
Insert the HOT GLASS in the microwave for the time specified in the instructions for use.
If you heat it too long, the gel inside will expand and the bag will be inflated until the content is poured.
The last minute in the microwave is advised to interrupt every 15 seconds and knead the gel inside with your hands to distribute the heat.