20 Most Recent Simbans TM 7 Inch Android 4.1 Pink Tablet - MODEL Dual Camera, Android 4.1 Jelly Bean, 4GB, A13 1.2Ghtz, Touch Screen, WiFi, YouTube, NetFlix, Skype, Games- PINK Questions & Answers

Sounds like the power button switch has given up on you. With a lot of care and time, you can fix this yourself for a few dollars if you buy the part and tools on eBay, or you can just take it to a repair shop.

swipe down from the top and check the settings in "audio profiles" See if the speaker is muted.

when i went onto the website to find a user manual for you there really is nothing to choose from. i do not know whether there is an issue with their website or what. what i do recommend is that you watch multiple review videos for that product until you have a general understand on how the operations are performed. and always remember practice makes perfect! simbans ultimax 10 tablet Bing video

To reset your tablet you need to go to setting then find backup & reset and when you are there you should click on factory reset

Try to charge using laptop or PC. For further help see manual Troubleshooting Guide - DGTEC TB07 Instruction Manual [Page 17] ' ManualsLib

"rom"? What exactly are you trying to do? Are you referring to ROM as part of the tablet's memory? If yes, you probably will not be able to do it. ROM is a memory chip built onto the circuit board itself inside the tablet. You would need to completely dismantle the tablet to do it. Most tablets are not built to be taken apart for repairs.