GigSky eSIM Not Working? Fixes That Actually Help (2026)

Most GigSky eSIMs that "do not work" are fixed in under two minutes by one of three things: turning data roaming on, selecting GigSky as your data line, or setting the APN to gigsky. Before you assume the eSIM is broken or start a support ticket, walk through the fixes below in order. They are the same steps GigSky's own help pages point to, and they clear up the large majority of no-data problems. If you get to the end and still have nothing, the last section covers when it really is GigSky's side and what to do about it.

Is data roaming turned on?

This is the single most common cause, so start here. A travel eSIM connects to a local partner network, and to your phone that counts as roaming - even though you will not be charged extra by GigSky for it. If data roaming is off, you get zero data no matter what else is correct. GigSky is explicit that its plans require data roaming to be set to allowed, and that you should ignore the on-screen roaming-charge warning because it does not apply to the GigSky line (GigSky Android setup).

• iPhone: Settings > Cellular (or Mobile Data) > tap the GigSky eSIM > turn Data Roaming ON.
• Android: Settings > Network and internet > SIMs > tap the GigSky eSIM > turn Roaming ON.

A frequent trap: roaming quietly switches itself off after your phone hops between networks or after a restart. If GigSky was working and then died, re-check this toggle first.

Have you set GigSky as the data line?

Having the eSIM installed is not the same as your phone actually using it for data. If your primary SIM is still the active data line, GigSky sits there doing nothing.

• iPhone: Settings > Cellular > tap your GigSky eSIM and make sure Turn On This Line is enabled and Mobile Data is ON. Then, under Cellular Data at the top, select the GigSky eSIM. GigSky also recommends turning OFF "Allow Cellular Data Switching" so your phone does not silently fall back to your home carrier's data and rack up charges (GigSky iPhone setup).
• Android: Settings > Network and internet > SIMs, pick GigSky under Mobile data, and confirm "Use SIM" is on for that line.

Once GigSky is the chosen data line with roaming on, most phones connect within a minute or two.

Is the APN set correctly?

The APN (Access Point Name) is the setting that tells your phone how to reach the network's data gateway. If it is blank or wrong, the eSIM registers on the network but never passes any data - which looks exactly like "no internet" even with signal bars showing.

GigSky's APN is simply gigsky. On Android especially, you may need to set and select it by hand:

1. Settings > Network and internet > SIMs > tap the GigSky eSIM.
2. Scroll to Access Point Names.
3. Confirm there is an entry with the APN field set to gigsky, and tap the radio button next to it to select it (GigSky Android setup).

iPhones usually pull the APN automatically, so you rarely touch this - but if an iPhone shows signal and still no data after the roaming and data-line checks, it is worth confirming there is no leftover APN from a previous carrier overriding it.

Did the eSIM install and activate for the right region?

If you never got a working connection to begin with, the problem may be at activation rather than in settings. When you buy, GigSky emails a QR code and an activation code along with install instructions, and you need a stable internet connection - Wi-Fi is best - to download the profile (GigSky QR install). A half-downloaded profile is a common early failure.

Two more things to check:

• Coverage matches where you are. GigSky sells country, regional, and global plans, plus separate cruise and inflight plans. A plan bought for one region will not give you data outside it. This matters most at sea: GigSky's cruise coverage runs on the ship's satellite network and needs a cruise or cruise-and-land plan, not a standard land plan (GigSky cruise plans).
• Give it time on first connect. GigSky notes that the first time you connect to a network in a new destination, registration can take up to five minutes. Do not keep toggling settings during that window - let it settle.

Still no data after the reset checklist?

If roaming, data line, APN, and coverage all check out and you still have no data, run these in order. Each one fixes a real, common failure mode:

• Restart the phone. This forces a fresh network registration and clears a surprising number of stuck states.
• Toggle Airplane Mode on for 15 seconds, then off, to re-scan for networks.
• Manually select a network. In Settings, turn off automatic network selection and pick a carrier from the list; if the automatic pick is a weak partner, a manual choice can rescue the connection.
• Check your data balance. If the plan is exhausted or expired, you have no data by design. You can add data through the GigSky app rather than buying a fresh eSIM.
• Reinstall the eSIM as a last resort, using the original QR or activation code.

When is it actually GigSky's side?

Sometimes you have done everything right and it is genuinely not you. Signs the problem is upstream: signal bars show but no data passes after a full reset, the same happens across two networks you select manually, or a destination simply has a weak local partner. GigSky, one of the older eSIM providers, leans on partner networks that vary in quality by country, and rural coverage is where any single-network eSIM can disappoint.

At that point, contact GigSky at help@gigsky.com and include your exact location, device make and model, OS version, your GigSky account email, current signal strength, and your cellular data settings - they ask for these to diagnose faster (GigSky Android setup). To be fair to GigSky, it is genuinely strong where few rivals bother - cruise ships and inflight coverage - so for those trips it is often the right tool even with the occasional setup friction.

The bottom line

Most GigSky "not working" cases are data roaming off, the wrong data line, or a missing APN - fix those three, give the first connection up to five minutes, and you are usually back online. If a destination's local partner network keeps letting you down, that is worth knowing before your next trip. If you would rather have a plan with live usage you can watch and top-up built in, eSIMpass data plans start at €3.07, cover 200+ destinations, and show your remaining data in real time in the "My eSIMs" dashboard - install by scanning a QR code, no app required. GigSky remains a solid pick for cruises and flights; pick the tool that fits the trip.

Why does my GigSky eSIM show signal but no internet?

Signal bars mean your phone found a network, but data needs two more things: data roaming turned on and a correct APN. Confirm roaming is allowed on the GigSky line and that the APN is set to gigsky, then restart. This combination fixes most "signal but no data" cases.

Do I need data roaming on for a GigSky eSIM?

Yes. GigSky connects through local partner networks, which your phone treats as roaming, so the roaming toggle must be on for the GigSky line. GigSky does not charge extra for this, so you can safely ignore the roaming-charge warning your phone shows for that eSIM.

How do I top up data on GigSky?

You add more data through the GigSky mobile app rather than needing to buy and install a brand-new eSIM each time. Check your remaining balance there too, since an exhausted or expired plan is a common reason data suddenly stops.

Does GigSky work on cruises and flights?

Yes, and it is one of GigSky's real strengths. It offers dedicated cruise and inflight plans covering many ships and select airlines. These need a cruise or inflight plan specifically, not a standard land plan, and at sea you turn Airplane Mode off so your phone can reach the ship's cellular network.

Should I switch from GigSky to another eSIM?

Only if a specific thing pushes you - weak coverage in the places you travel, or wanting live usage tracking and simple top-up. GigSky is a good fit for cruises and flights. For everyday country and regional travel, compare the exact destination and plan you need before deciding; there is no lock-in with any eSIM.