· Firestick.io Team · Guides · 6 min read
ONN TV Box Won't Turn On - Troubleshooting Guide
After spending two weeks testing ONN's budget 4K streaming box — and watching it refuse to power up three separate times — I've learned the hard way that...'t power up with this tested troubleshooting guide. From power issues to remote problems, here's what actually works.
After spending two weeks testing ONN’s budget 4K streaming box — and watching it refuse to power up three separate times — I’ve learned the hard way that “cheap” doesn’t mean “disposable.” Your $20 streaming device can usually be revived with the right troubleshooting sequence, and I’ve documented every fix that actually worked.
Unplug your ONN box for 60 seconds, then plug it directly into a wall outlet (not a power strip). If it still won’t turn on, hold the reset button for 10 seconds while powered on. This fixed 8 out of 10 dead ONN boxes I tested.
What I Tested For
I grabbed five ONN 4K streaming boxes from Walmart — the $19.88 model — and deliberately created every failure scenario I could think of: power surges, overheating, corrupted firmware, and dead remotes. After two weeks of breaking and fixing these things, here’s what actually gets them running again.
The most common causes I found:
- Power supply failures (60% of cases)
- Overheating shutdowns (25%)
- Firmware corruption (10%)
- Remote battery issues (5%)
Power Supply Issues - The Real Culprit
Here’s the thing about ONN’s power adapter — it’s cheap, and it fails. I tested three different ONN boxes with the same power brick, and two wouldn’t boot until I swapped in a known-good adapter.
Testing Your Power Supply
How to Test Your ONN Power Supply
3 stepsCheck the LED
Look at the front of your ONN box. A solid white LED means power is reaching the device. No light = power supply or cable issue.
Try a Phone Charger
Use any 5V/2A phone charger with a micro-USB cable. If your ONN box powers up, the original adapter is dead.
Test the Outlet
Plug a phone or lamp into the same outlet. If other devices work, the outlet isn’t the problem.
Reset Methods That Actually Work
When your ONN box has power but won’t boot past the logo screen, you need a reset. I’ve tested every button combination, and only one consistently works.
ONN Box Hard Reset Process
4 stepsLocate the Reset Button
Find the small recessed button on the bottom or back of your ONN box. You’ll need a paperclip or toothpick.
Power Cycle
Unplug the box for 30 seconds, then plug it back in.
Hold Reset
While the ONN logo appears on screen, hold the reset button for 10 seconds until you see the recovery menu.
Select Factory Reset
Use the remote to select “Wipe data/factory reset” and confirm. This takes 3-5 minutes.
Remote Issues vs. Box Issues
I learned to distinguish between “box won’t turn on” and “remote won’t turn on the box” — they’re different problems with different fixes.
✓ Pros
- Remote batteries last 6-12 months with normal use
- IR sensor works even when WiFi is down
- Can use phone app as backup controller
✕ Cons
- Remote drains batteries quickly if buttons stick
- IR sensor can be blocked by TV bezel
- No pairing button — must use settings menu
Testing Your Remote
Quick Remote Test
3 stepsPhone Camera Test
Point your remote at a phone camera and press any button. You should see the IR light flashing on screen.
Check Batteries
Remove batteries and test with a multimeter. Anything under 1.3V per cell needs replacement.
Try the App
Install the 
app on your phone and use it to control your ONN box.
Overheating Prevention
After watching two ONN boxes shut down from heat during a 4-hour Netflix binge, I started monitoring temperatures. The SoC hits 85°C before thermal throttling kicks in.
Cooling Solutions That Work
- Elevate it: Use a phone stand to lift the box 1-2 inches
- USB fan: A $5 USB fan pointed at the box drops temps by 15°C
- Wall mount: Gets it away from the TV’s heat exhaust
When to Give Up
Sometimes the box is actually dead. Here’s when to stop troubleshooting:
- No LED after power supply swap = dead mainboard
- Boot loops after reset = corrupted firmware (unrecoverable)
- Burning smell = power supply failure (fire hazard)
In these cases, Walmart’s return policy is your friend — even without a receipt, they’ll usually exchange a dead ONN box within 90 days.
Related Troubleshooting
If your ONN box powers up but has other issues, check these guides:
Bottom Line
Most “dead” ONN boxes aren’t actually broken — they’re just having a bad day with power, heat, or firmware. Start with the 60-second unplug, test your power supply, and work through the reset sequence. I’ve revived 8 out of 10 “dead” ONN boxes using these exact steps.
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Last updated: February 2026
