Technician helping troubleshoot Motorola phone screen brightness not working

Steve H.

Reviewed for technical accuracy

Specialities: Samsung Bluetooth tethering issues, internet sharing over Bluetooth, pairing/connection problems, Mobile Hotspot & Tethering settings.

Bluetooth internet tethering on Samsung: common reasons + safe checks (pairing, permissions, data saver, after updates, Windows/Mac)

Technician avatar Technician
Hi — I can help you sort this out calmly. When Bluetooth tethering stops working on a Samsung phone, it’s frustrating because everything can look “connected,” but the other device still has no internet.

Before we change anything, let’s start with the safest checks first. I don’t want you to hit any “reset” options or remove saved connections unless we have a clear reason — those can be annoying to undo.

Quick context so we don’t chase the wrong thing:
• What are you trying to share internet to — a Windows laptop, a Mac, a tablet, or a car?
• Did this begin after something changed (a Samsung/Android update, a new laptop, new SIM/eSIM, new carrier plan, or a phone restart)?
• Does Wi-Fi hotspot work, and only Bluetooth tethering fails?
Customer
It’s my Windows laptop. It used to work, but now it shows Bluetooth connected and still says “No internet.” I think this started after an update last week.
Technician avatar Technician
That “started after an update” detail matters. Bluetooth tethering can be affected by small changes in permissions, battery/data saving settings, or the laptop’s Bluetooth network profile.

Two quick checks that won’t change anything important:
1) On the Samsung phone, is Mobile data working normally on the phone itself (web pages/apps load)?
2) If you turn on Wi-Fi hotspot (just to test), does your laptop get internet that way, or is sharing broken in general?
Customer
Mobile data works on the phone. Wi-Fi hotspot works too. It’s just the Bluetooth tethering that won’t give internet.
Technician avatar Technician
Good news: that means your internet connection is fine, and the issue is likely the Bluetooth tethering “bridge” between phone and laptop — not the carrier, and not the phone’s internet overall.

Let’s narrow it down safely:
• When you try, does the Samsung phone show Bluetooth tethering switched on under “Mobile Hotspot and Tethering”?
• On the laptop, does it say something like “Connected” but still “No internet,” or does it fail to connect at all?
Customer
On the phone, I turn Bluetooth tethering on. On the laptop it says connected, then a yellow warning and “No internet access.”
Technician avatar Technician
That pattern often happens when the laptop is paired for “audio” or “basic connection,” but the network access service (tethering) isn’t actually being used.

Trust moment: I don’t want you to delete the Bluetooth pairing yet — that can create extra steps and frustration. Let’s check the simplest, reversible things first.

Safe checks to confirm we’re on the right path:
• On your Samsung phone, is Battery Saver or Data Saver turned on right now?
• When you connect, do you see a small “tethering” indicator anywhere, or does it look exactly the same as a normal Bluetooth connection?
Customer
I do use Battery Saver sometimes. And I turned on Data Saver before. I don’t see any special tethering sign, just Bluetooth connected.
Technician avatar Technician
Battery Saver and Data Saver can interfere with background sharing. They’re useful settings, but they sometimes limit what the phone allows other devices to do through tethering.

Another common “after update” issue: Bluetooth pairs fine, but Windows keeps an older network profile and doesn’t switch to the correct service.

Quick, low-risk questions so we don’t miss something simple:
• Is your laptop connecting through Bluetooth to any other device at the same time (headphones, mouse, speakers)?
• On the Samsung phone, is this option present: Settings → Connections → Mobile Hotspot and Tethering → Bluetooth tethering (and it stays on), or does it flip back off?
Customer
I have a Bluetooth mouse, yes. The tethering switch sometimes turns off by itself, especially after I restart the phone.
Technician avatar Technician
That “turns off by itself” detail is important. It can happen if the phone thinks tethering isn’t allowed at the moment, or if a power-saving rule is shutting it down.

Trust moment: Let’s keep this safe — no factory reset, no wiping network settings. We’ll just gather clues and do gentle tests you can undo.

A safe way to isolate the trigger:
• Does Bluetooth tethering stay on if you temporarily turn off Battery Saver (just for a short test)?
• Does it turn off when you toggle Airplane mode on/off, or only after a full restart?
Customer
I think it turns off after Airplane mode sometimes. I use Airplane mode when I’m out. And I’m worried I’ll mess up my phone if I change too much.
Technician avatar Technician
You’re being smart to be cautious. The safe checks we’re talking about (looking at settings, temporarily toggling Battery Saver, reconnecting Bluetooth) won’t delete contacts, photos, or messages.

The only thing I’d treat as “pause and read carefully” is anything called Reset (like resetting network settings). We are not going there in this path.

One more useful detail: on Windows, Bluetooth tethering may appear as a network option like Bluetooth PAN or “Network connection.” If Windows isn’t using that, it can look connected but still have no internet.
Customer
Yes, I’ve seen something like “Bluetooth Network Connection.” It says connected, but internet still doesn’t load. Is this a Samsung problem or Windows?
Technician avatar Technician
It can be either side, which is why we do “split tests.” Since Wi-Fi hotspot works, the phone can share internet. So we mainly need to confirm:
1) Samsung is actually allowing Bluetooth tethering (not blocked by saver settings or a policy).
2) Windows is actually using the tethering service (not just “paired”).

Safe split test idea (no risky changes):
• Try Bluetooth tethering to a second device if available (a tablet or another phone). If that works, Windows is the likely bottleneck. If it fails everywhere, focus back on Samsung settings.
Customer
I tried with my old tablet and it didn’t get internet either. So maybe it’s the Samsung phone side.
Technician avatar Technician
That points strongly to the phone’s tethering behavior — especially if the switch turns off after Airplane mode or a restart.

Common reasons on Samsung phones include:
• Battery Saver/Data Saver limiting internet sharing.
• The phone not keeping the tethering service active unless a certain order is followed (for example, some people notice it behaves differently depending on whether hotspot was used recently).
• A recent update changing how Bluetooth tethering stays enabled.

If you’re comfortable, note two things the next time it fails: does Bluetooth tethering turn off instantly, or does it stay on but the other device still can’t reach the internet?
Customer
It stays on for a minute, then flips off. I also noticed it’s worse when my phone battery is low.
Technician avatar Technician
That fits perfectly with power-saving controls. When battery is low, Samsung may be more aggressive about shutting down background sharing services.

Here’s a senior-friendly way to approach this without getting into trouble:
• Keep the test simple: phone charged above 30%, Battery Saver off just for the test, then try Bluetooth tethering again.
• If it stays on and works in that condition, we’ve learned it’s a saving/permission issue — not the laptop and not your mobile data plan.
• If it still flips off even with a good battery level, we’ll suspect an update-related behavior and focus on the tethering toggle and connection state (without any resets).
Customer
Could this be my carrier blocking it? Someone told me tethering can be restricted.
Technician avatar Technician
Carrier restrictions are possible, but your clue that Wi-Fi hotspot works makes a full carrier block less likely. When carriers restrict tethering, it usually affects hotspot and tethering broadly, not only Bluetooth.

The more likely picture here is: Bluetooth tethering is allowed, but it’s being shut off by a setting, a power-saving rule, or an update behavior — especially if it flips off when the battery is low or after Airplane mode.

If you remember one thing: we’re not trying to “force a fix” blindly. We’re collecting safe evidence (battery level, saver settings, whether it flips off) so the next step is confident and controlled.

Quick answer: the accepted fix

Accepted first approach when Samsung Bluetooth internet tethering is not working: confirm sharing is allowed, then isolate “power saving” from “pairing” before you change anything permanent.

What usually helps most (safe checks):
• Confirm Mobile data works on the phone and Wi-Fi hotspot can share internet (so the connection itself is fine).
• Check whether Battery Saver or Data Saver is limiting internet sharing, especially when the battery is low.
• Make sure Bluetooth tethering stays enabled (doesn’t flip off after Airplane mode/restart) and note exactly when it turns off.
• Verify the other device is connected for network access (not just “paired”), and compare results on a second device if possible.
• Avoid resets until you have these clues — they’re rarely needed as a first step and can be inconvenient to undo.


Why Samsung Bluetooth tethering can stop working after an update (or suddenly)

Bluetooth tethering can fail after a Samsung/Android update because the phone may change how it handles background sharing, permissions, or power-saving rules. Sometimes devices remain paired, but the “internet sharing” service doesn’t start correctly, or it turns off on its own after Airplane mode. Battery Saver and Data Saver can also limit tethering in ways that aren’t obvious. If Wi-Fi hotspot works but Bluetooth tethering doesn’t, the issue is usually the Bluetooth tethering bridge — not your mobile data connection.

What to check first: pairing vs “connected but no internet,” power saving, and device type

Start by confirming what “not working” means: is the device not pairing, or does it pair but show “No internet”? Then check whether Bluetooth tethering stays switched on, especially after a restart or Airplane mode. If the problem gets worse when the phone battery is low, power-saving settings are a strong suspect. Testing with a second device (even briefly) helps you tell whether the issue is Samsung-side or device-specific without risky changes.

Samsung Bluetooth tethering not working — gentle troubleshooting tips

If Wi-Fi hotspot works but Bluetooth tethering doesn’t, focus on tethering settings, power saving, and the Bluetooth network connection.

Best approach: confirm the phone’s mobile data is fine, then check whether Battery Saver or Data Saver is limiting sharing. Watch whether the Bluetooth tethering switch stays on or flips off after Airplane mode or when the battery is low. On computers, pairing alone is not enough — the device must be using the Bluetooth network connection for internet sharing. Make one small test at a time so it’s easy to see what changed.

Disclaimer: This information is AI-generated and intended for general guidance only. Avoid making multiple system changes at once. For device-specific steps, consult a verified expert on Whizz-Tech or the manufacturer’s support before making decisions.

Additional troubleshooting options


Getting Started Is Easy

Ask for help, 24/7

Members enjoy round-the-clock access to 12,000+ verified Experts, including iPhone mobile data very slow issues, LTE/5G coverage questions, Data Mode/Low Data Mode checks, and safe carrier troubleshooting.

Expert will respond in minutes

We’ll help you pinpoint whether slow cellular data is caused by network congestion, carrier limits, iPhone settings, or a VPN profile — without risky trial-and-error.

Save time & money

Safe diagnostics help you confirm whether this is a carrier/coverage issue or a simple iPhone setting, before you spend money on unnecessary service or make changes you can’t easily reverse.

FAQ

Why did Bluetooth tethering stop working on my Samsung phone after an update?

Updates can change Bluetooth permissions, background sharing behavior, or power-saving rules. Devices may stay paired but lose the “internet sharing” service. Battery Saver/Data Saver can also start affecting tethering more strongly after updates. Start with safe checks before removing pairings or resetting settings.

My laptop says “Connected” but there’s no internet — what does that mean?

It often means Bluetooth is connected for pairing, but the computer isn’t using the Bluetooth network connection for internet. This can look like “connected, no internet” or a yellow warning sign on Windows. If Wi-Fi hotspot works, it strongly points to the Bluetooth tethering link. A quick comparison with a second device can help confirm.

Is this a settings issue, or is my carrier blocking Bluetooth tethering?

Carrier restrictions can exist, but if Wi-Fi hotspot works, a full carrier block is less likely. Settings like Battery Saver or Data Saver are more common causes when Bluetooth tethering switches off by itself. If tethering fails in all forms (hotspot and tethering), then plan restrictions become more likely. Gather the pattern first (battery level, Airplane mode, after restart).

Can I check this safely at home without doing a reset?

Yes. You can safely confirm mobile data works on the phone, check whether saver modes are on, and observe whether the tethering toggle stays enabled. Testing with one additional device is also low-risk. Avoid “Reset network settings” until you have basic clues, because it can remove saved Wi-Fi details.

Sources

Matt Verified Icon
Matt ● replies in < 1 min
Technician Expert
⭐⭐⭐⭐⭐ Trusted by 27,000+ customers
Avatar
Alex · Expert's Assistant