After receiving the user's phone, the Hisense LCD TV LED48K20JD automatically restarts after the progress bar appears. It has been determined that this is a software-related issue. After confirming the TV model, I located the corresponding firmware and downloaded it to a USB drive using a dedicated tool. The boot process matched exactly what the user described. Therefore, the user should first attempt to update the firmware. To proceed, turn off the TV, insert the USB drive into the USB port, and wait for the system to detect the upgrade. The process usually takes about 5 minutes. Once completed, the TV should function properly again.
Download the firmware here: Click here | Password: 9518
It's important to make sure the TV remains powered on during the entire update process to avoid any potential issues. If the problem persists after the update, further troubleshooting or professional assistance may be required. Always back up your data before performing any firmware updates. Let me know if you need additional help with the installation or have any other questions!
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