Hello Anita, It sounds like something might have gone wrong during the repair process or they are using a sub par quality part. Although it is possible for you to order a new part and try it yourself I recommend you take it back to the shop that fixed it and ask them to repair it under warranty (assuming the screen is in no way damaged.) Any reputable shop should have at least a 30 days warranty on their parts and labor although most offer up to a year. Please let me know if this works so I can further assist you. Thanks!

Hey Diego, I am sure there are multiple repair techs/shop owners on here that you can send your phone to (myself being one of them) and for the power flex replacement you have to pull the entire logic board out so it can be kind of tricky. I would recommend going slow and paying close attention to how everything comes apart and where each screw goes if you do decide to do it yourself or simply check out idoctormt.com and fill out a mail in form and we can get it repaired for you! Let me know if you have any more questions. Hope this helps!

Hey Aailyah, It sounds like your digitizer is broken. This can either be solved by making sure the connector is all the way on or by simply replacing the screen. If you are comfortable repairing your own device there is a great teardown here on iFixit and you can order quality parts through eTech parts or iFixit's parts store. If you have any other questions feel free to ask or check out youtube. Hope this helps!

Hey Andrew, Sounds like a simple battery repair would do the trick! There is a very detailed guide on the iPhone 5 tear-down, I would follow that or check out a you tube video that will guide you through the process. You can purchase quality batteries through eTech parts or ifixits parts store. Let me know if you need any further help and I would be happy to assist.

Hey Kathy, So iPod TG4's are infamous for being finicky devices, the first thing I would try is to bridge the connection between the metal on the bottom of the charger port to the positive battery terminal. Often times this will bring them back to life. If that does not work let me know and I would be happy to help you further! PS make sure you scrape off the covering over the solder connection on the battery terminal

Hey Luke, I have had this problem before on a customer's device and if the scratches are not that deep then you can use a black sharpie and color it in, wait for it to dry and then add some more. However if they are pretty bad I would recommended just replacing the screen. Let me know if this helps!

Hey Miki, I have seen this happen of the iPhone 6 before if any part of the home button flex is torn. Trying unplugging the home button from the board and seeing if that will power it on. Let me know if this helps!

Hello, It sounds like your LCD has gone out or the connection has just come loose. I would try to reseat the connection first and if that doesn't work I would order a replacement LCD screen.

What model of tablet did you have? There should be a model number on the back side of the tablet. Thanks.

Try giving the ipad a good smack on the back side of it. The way that lcd connection is hooked up it can come loose and hitting it can reseat that connector. Let me know if that helps.