This is by far the hardest part of any tutorial that requires you to open the Samsung. The iOpener is totally useless on my opinion (it doesn’t get warm enough). What I did instead is use a hairdryer but it took me time before I could get the adhesive soft enough. Especially since I was not able to measure the temperature of the phone will warming it. Also I think that the halberd is not thin enough so I used a radiology sheet (don’t know the right word in English) to get into the phone and it was much more effective and time saving. Thank you for the tutorial and good luck !

Once the battery is removed and you want to glue the new one, make sure that you leave enough room for the speakers. Honestly the battery change was far easier that what I thought, I think everyone is capable of doing it. Great tutorial by the way, thank you for the work !