If you’re having trouble charging your Surface, you get a low-battery error, or your Surface turns off when you unplug it, the steps in our Surface battery won’t charge article can help you pinpoint and fix the problem.
Please also ensure you device is up to date by downloading and installing the latest Surface driver and firmware updates from the Microsoft Download Center. Look for the Windows 10 or Windows 8 .msi file.
Should you need any further assistance, please contact us.
What kind of nerve does it take to blatantly ignore everything in these postings that CLEARLY indicate none of what you just suggested works, because trust me, we've tried. My SP3 was working just fine until the August firmware update, when, just like most of the people here, the battery broke and now doesn't stay on unless plugged in. No other firmware, no matter how excellently installed by me or anyone else, has since fixed it. SO FIX THIS AND QUIT MARKING THIS A SOLVED ISSUE. I've already purchased a new tablet to replace the brick you turned mine into, and trust me I didn't buy it from Microsoft. What a great product gone to waste. You've lost a lot of existing customers by ignoring us this long.