Samsung A30 touchscreen not working after update, Graphics Test failure

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Hi, can anyone help!

– I think(!) I consented to a phone update and suddenly a few days later, my touchscreen has stopped working!
– I took out the sim card and wiped the phone, this eventually worked
– While running a Graphics Test from the boot menu, there are errors and it tries to reverse
– After wiping a few times, I find that the touchscreen works again but now it has failed once more.

Please help! Thanks!

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