A TCL 6-Series R655 that restarts by itself, never finishes powering on or shows the TCL logo in a loop is usually dealing with a software glitch, a power supply issue or a connected device, and the sequence of fixes is short. Begin with a full power cycle. Unplug the TV from the wall, hold the power button on the TV for thirty seconds, which drains residual charge, wait a minute and plug it back in. Plug it directly into a wall outlet and not a power strip or a surge protector that may be failing, and check the cord for damage.
The checks in more detail
Remove all connected devices, including HDMI sources, USB drives, and the antenna, and restart: a faulty device or a USB stick can cause a boot loop on a Roku TV. If the TV starts, add the devices one at a time to find the culprit. Then check the software. This Mini-LED Roku TV updates itself, and an interrupted update can cause restarts; press Home, go to Settings, System, System update and check now. A restart loop that hits as soon as you update suggests a bad update, and a factory reset may be needed.
If you can reach the menu, use Settings, System, Advanced system settings, Factory reset, which erases settings and sign-ins, so note your Wi-Fi password. If you cannot reach the menu, hold the reset button on the back, a small pinhole, for about twenty seconds with the TV on, which starts a factory reset on Roku TVs. Pay attention to when it restarts. A restart after a few minutes of heavy use suggests heat, so clear the vents and give the TV room.
A restart when the picture brightens or during HDR content points to a power supply that is struggling, a known issue on some sets; in that case try a different outlet and lower the backlight. A TV that restarts when a particular app opens may need that app removed and added again. If the TV clicks and will not power on, or shows a red or flashing standby light, note the pattern of flashes, since service uses it to diagnose. If every step fails, contact TCL with the model and serial number from the back, as a power board repair may be needed under warranty.
Differential
Likely causes of “TCL 6-Series Roku TV R655 keeps restarting or will not stay on”, and how to tell them apart
- 1
A stuck power state
What separates it The TV will not finish starting
How to confirm Unplug and hold the power button for thirty seconds
- 2
A faulty connected device or USB stick
What separates it A boot loop with devices attached
How to confirm Disconnect everything and add them back one by one
- 3
A bad or interrupted software update
What separates it Restarts after updating
How to confirm Check for an update or factory reset
- 4
A struggling power supply
What separates it Restarts on bright HDR scenes
How to confirm Try another outlet and lower the backlight
- 5
Heat
What separates it Restarts after heavy use
How to confirm Clear the vents
Before you touch a setting
Record this first — changing settings destroys the evidence
- When it restarts
- The standby light pattern
- Devices connected
- The software version
Try in this order
0 of 6 completedUnplug and hold power
ReversibleFor thirty seconds.
Plug into a wall outlet
ReversibleNot a strip.
Remove all devices
ReversibleThen add them back.
Update the software
ReversibleIn System update.
Factory reset
ReversibleIf needed.
Contact TCL
ReversibleIf it persists.
Model-specific
What is true of this model and not of its siblings
- Roku TV
- A reset button sits on the back.
- Power
- Wall outlets are better than strips.
Stop boundary
When this stops being a self-service repair
- !If it fails after a factory reset, contact TCL with the model and serial number
- !Note the standby light flashes
- !Do not open the TV
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why does my R655 keep restarting?+
A software glitch, a connected device or power.
Can a USB stick cause a loop?+
Yes.
How do I factory reset without the menu?+
Hold the reset button on the back for about twenty seconds.
Will a reset erase my apps?+
It erases settings and sign-ins.