Telkomsel eSIM Not Working in Bali? Fix It in 10 Minutes (2026)

Do These Three Things First

Before anything technical. These clear a surprising number of cases on their own.

1. Turn flight mode on, wait ten seconds, turn it off. This forces your phone to search for a network again.
2. Restart the phone. Fully off, then on. Not just locking the screen.
3. Wait five minutes after landing. A newly activated line can take a few minutes to attach to the network for the first time.

Still nothing? Keep going.

1. Your IMEI Is Not Registered

This is the single most common cause in Indonesia, and it is the one that does not exist anywhere else in the world.

Indonesia requires every foreign phone to have its IMEI — the serial number of the handset — registered with the government before it can use an Indonesian network. This is separate from the SIM registration. If the IMEI is not on the list, the eSIM installs perfectly, shows a signal bar, and still carries no data.

The full rules, including how long a tourist registration lasts and how often you can do it: IMEI registration in Bali and Indonesia.

What it looks like

• The eSIM installed with no errors
• You can see "Telkomsel" as the carrier name
• You may even have one or two bars
• But nothing loads, and calls fail

How to find the right IMEI

Do this instead:

1. Make sure the eSIM is installed and switched on (Settings → Mobile Data → turn the line on).
2. Go to Settings → General → About on iPhone, or Settings → About phone on Android.
3. Scroll to the block where the Carrier reads "Telkomsel".
4. The IMEI listed in that same block is the one we need. A screenshot is easiest.

On many phones it will be the second IMEI, but not always — which is exactly why you read it off the screen rather than assume.

Two more IMEI traps

You changed phones. The registration is tied to the handset, not to you. Using a different phone on your trip? Tell us before your arrival date and we register that phone on the same eSIM instead. Once your line has been registered on your arrival day, it cannot be moved to another phone, and you would need a new eSIM.

A digit was mistyped. An IMEI is 15 digits. One wrong character and the registration silently fails, and it cannot be corrected afterwards. Send a screenshot rather than typing the number.

2. The Line Is Installed But Switched Off

Installing an eSIM and turning it on are two separate steps. A lot of people do the first and assume the second happened.

iPhone: Settings → Mobile Data (or Cellular) → tap the Telkomsel line → make sure Turn On This Line is green.

Android: Settings → Network & internet → SIMs → tap the Telkomsel line → make sure it is enabled.

3. Your Phone Is Using the Wrong Line for Data

Your phone now holds two lines: your home number and the Telkomsel one. It will happily keep using your home line for data, which either does nothing or quietly runs up an enormous roaming bill.

iPhone: Settings → Mobile Data → Mobile Data (near the top) → select Telkomsel.

Android: Settings → Network & internet → SIMs → Mobile data → select Telkomsel.

4. The APN Is Wrong or Missing

The APN tells your phone how to reach the network's data service. It usually fills in automatically. When it does not, you get signal and no internet.

For Telkomsel the APN is internet. Lower case, one word, nothing else. Leave username and password blank.

iPhone: Settings → Mobile Data → tap the Telkomsel line → Mobile Data Network → set APN to internet.

Android: Settings → Network & internet → SIMs → Telkomsel → Access Point Names → add or edit → Name: Telkomsel, APN: internet → save, then select it.

Restart the phone afterwards.

5. Your Phone Is Carrier-Locked

If you bought your phone on a contract or instalment plan, your carrier may have locked it to their network. A locked phone will refuse any other SIM, including an eSIM.

How to tell

iPhone: Settings → General → About → scroll to Carrier Lock. It should say No SIM restrictions. Anything else means locked.

Android: Varies by brand. Settings → About phone → Status, or contact your carrier.

Only your home carrier can unlock it, and it usually takes a few days. This is the one problem no eSIM seller can fix for you — which is why it is worth checking before you fly.

6. Data Roaming Is Turned On for the Telkomsel Line

Your Telkomsel eSIM is a local Indonesian line, not a roaming one. In Indonesia it is on its home network.

Travel eSIMs like Holafly, Saily, Airalo and Jetpac are different. They are roaming products, so their instructions tell you to turn data roaming on. That advice is everywhere online, and it is wrong for a local line.

Turn data roaming OFF for the Telkomsel line. The Telkomsel eSIM needs roaming off to work in Indonesia. Keep roaming off for your home line too, so your home carrier cannot charge you roaming fees.

7. You Are Somewhere With No Signal

Sometimes the eSIM is fine and the location is the problem.

Telkomsel covers over 97% of Indonesia's population, which is the widest reach of any network here, but no network covers everything. If your data died specifically when you arrived somewhere, look at where you are before you blame the eSIM.

Where you are	What to expect
Kuta, Seminyak, Canggu, Denpasar	✅ Strong everywhere
Central Ubud	✅ Strong
Deep in the Ubud valleys and rice terraces	⚠️ Can drop in the gorges
Nusa Penida, Amed, Sidemen	⚠️ Good on Telkomsel, patchy on other networks
Mid-crossing on the fast boat	⚠️ Expect gaps
Mount Batur before sunrise	⚠️ Thin on the trail, fine at the top
Inside a concrete-and-stone villa	⚠️ Step outside and try again

If a different phone next to you also has no signal, it is the location, not your eSIM.

👉 Which network does your Bali eSIM actually use? We checked all 13.

8. The Plan Ran Out

Two different things end a plan, and people mix them up.

	What happened	What you see
Data used up	You went through your gigabytes	Signal is fine, nothing loads
Validity expired	The days ran out, even with data left	Line goes dead

Dial *888# on the Telkomsel line to check your remaining balance and quota.

Running out early is usually video. One hour of Netflix or YouTube in HD is about 3GB — roughly three normal days of maps, WhatsApp and scrolling. If you burned through a 10GB plan in four days, that is almost certainly why.

👉 How much data you actually need in Bali

Still Broken? Message a Human

If you have worked down all eight and it is still dead, stop guessing. Something is wrong at the registration or provisioning level and no amount of toggling will fix it.

If you bought from an app-only provider

Open their in-app chat. Be aware their support team is in another country and cannot see the Indonesian network, cannot register an IMEI, and has no office you can visit. Ask them directly whether your IMEI has been registered with the Indonesian government — most roaming eSIMs do not do this at all, because they never give you an Indonesian number.

Frequently Asked Questions

Why is my Telkomsel eSIM not working in Bali?

The three most common causes are an unregistered IMEI, a line that is installed but not switched on in settings, and a phone still using the home SIM for data. In Indonesia the IMEI cause is the most frequent, because Indonesian law requires every foreign handset to have its IMEI registered with the government before it can use a local network. When the IMEI is missing, the eSIM installs and shows a signal but carries no data.

My eSIM shows signal but no internet. What is wrong?

Signal with no data almost always means one of three things: your IMEI is not registered, the APN is wrong, or your phone is set to use a different line for mobile data. Check the data line first because it takes ten seconds, then set the APN to "internet", then check the IMEI registration.

How do I find the right IMEI for my eSIM?

Do not use *#06#. It shows IMEI1 and IMEI2 but does not tell you which one your eSIM actually landed on. Install the eSIM, switch the line on, then go to Settings, General, About on iPhone or Settings, About phone on Android, and find the block where the Carrier reads "Telkomsel". The IMEI listed in that same block is the correct one. This matters because Indonesian IMEI registration cannot be edited. If your phone's other IMEI was registered, move the eSIM to it. A mistyped IMEI or another phone's IMEI can only be fixed with a new eSIM, bought again.

What is the Telkomsel APN setting?

The APN is "internet", in lower case, with the username and password left blank. On iPhone set it under Settings, Mobile Data, tap the Telkomsel line, then Mobile Data Network. On Android set it under Settings, Network and internet, SIMs, Telkomsel, Access Point Names. Restart the phone afterwards.

How do I check how much data is left on my Telkomsel eSIM?

Dial *888# on the Telkomsel line. This shows your remaining quota and the expiry date of your plan. Note that a plan can end two ways: the data runs out, or the validity period expires while data is still left.

Does an eSIM stop working if I change phones?

Yes, in Indonesia. IMEI registration is tied to the handset rather than to you. With Balitel, if you will use a different phone, tell us before your arrival date and we register that phone on the same eSIM. Once your line has been registered on your arrival day, it cannot be moved to another phone, and you would need a new eSIM.

Can a carrier-locked phone use a Telkomsel eSIM?

No. A phone locked to your home carrier will refuse any other network, including an eSIM. On iPhone check Settings, General, About, and look for Carrier Lock — it should read "No SIM restrictions". Only your home carrier can unlock the phone, and it usually takes several days, so check before you travel.

Should data roaming be on or off for a local Indonesian eSIM?

Off, for both lines. Your Telkomsel eSIM is a local Indonesian line, not a roaming one, and it needs data roaming turned off to work in Indonesia. Travel eSIMs such as Holafly, Saily, Airalo and Jetpac are roaming products, which is why their instructions say to turn roaming on. Keep roaming off for your home line too, so you do not get roaming charges.

Why does a Telkomsel eSIM need my passport and IMEI?

Because it is a local Indonesian line, not a roaming one. Indonesian law requires every mobile number to be registered against a verified identity, and separately requires foreign handsets to have their IMEI registered before using a local network. Balitel completes both before you arrive. Roaming eSIMs skip this because they never issue you an Indonesian number.

What is Balitel?

Balitel is an authorized Telkomsel retailer based in Kuta, Bali. It sells official Telkomsel tourist eSIM plans that include a real Indonesian +62 phone number, handles the passport and IMEI registration required by Indonesian law, and sends the eSIM QR code by WhatsApp before travelers arrive. Balitel is part of Diamond Handphone, a Bali mobile retail business operating since 1998 with stores in Denpasar, Kuta, Seminyak and Canggu.

Can I get a refund if my eSIM never works?

From Balitel, yes. Unactivated eSIMs are fully refundable within 30 days of purchase. If an eSIM has been activated and has a technical fault we cannot resolve, we fix it, replace it, or refund it. What is not covered is a failure caused by incorrect IMEI or passport details supplied at the time of ordering, which is why it is worth double-checking those digits.

Correction: an earlier version of this page said to find your IMEI by dialling *#06# and sending both numbers. That does not identify which IMEI your eSIM is actually using. The correct method is to read the IMEI from the block where the Carrier says "Telkomsel". Corrected 28 August 2026. A later version said a wrong IMEI could be re-registered the same day. It cannot: the fix is a new eSIM, bought again. Corrected 2 October 2026. Clarified 6 October 2026: if your phone's other IMEI was registered, moving the eSIM to it fixes the line.

More reading

• IMEI registration in Bali and Indonesia: the full rules
• Is your phone eSIM compatible? The full list
• How fast can you get a Telkomsel eSIM in Bali?
• Can I buy a Telkomsel eSIM online? Depends who you are
• Which network does your Bali eSIM actually use?
• Do you really need unlimited data in Bali?
• How our eSIM works, step by step