Good afternoon, my names i James and I will assist you with your two queries today.
Firstly the Samsung note, this sounds like a significant software issue on the device.
The only solution is to perform a factory reset, which will erase all the files and settings stored on the tablet.
Please note if the process above has failed, then unfortunately the fault is not economical to repair as it would suggest the ROM chip on the tablet has failed.
With regard to the S3 if its not charging via the USB port, can you confirm if you have tried using other USB chargers to check if its the phone or the charger at fault?
Unfortunately your note 10 has a corrupted ROM chip, if the unit is still under warranty you can take it back to the store your purchased it from, however if its not, the cost of repair would be almost the same as that of a new tablet.
Thank you for clarifiyng regarding the S3 phone charger, the most likely cause will be hardware related, the USB sockets are a stress point and often fail, these can be replaced\repaired, by any local phone repair store. If you provide me your post code I can recomend someone in your area, the part is generally around £15 to replace.
Thank you, ***** ***** me a few minutes to look up a list of approved engineers in your area.
Based on your location I would recommend you use Fone Corner which is located at 59 High St, Harrow, HA3 5DQ (1 mile from your postcode). The cost including labour is £25, and they are open until 6PM this evening, and open again at 11am Monday.
You can contact them directly on(###) ###-####8100.
No problem, appreciate if you can rate the service received today.