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We're The SIM Shop, a competing retailer. This guide helps separate a phone setting from an allowance or order issue SimCorner needs to resolve.
Start with the actual product you bought
SimCorner sells different eSIMs and physical SIMs, including more than one Japan product family. Use the setup details attached to your order, not an APN or network copied from another customer's review.
| What you see | First useful check |
|---|---|
| No new profile in SIM settings | Read the installation error and confirm the intended device and working Wi-Fi |
| Profile installed, No Service | Destination coverage, activation status, enabled line and supported network |
| Signal, no internet | Selected data line, roaming/APN for that order, remaining allowance and expiry |
| Phone internet works, laptop doesn't | Selected product's hotspot terms and phone hotspot settings |
| Internet works slowly | The exact plan's remaining high-speed data and any reduced-speed conditions |
A visible network name isn't a balance reading. A large remaining balance doesn't prove the running validity hasn't ended.
Make the reversible checks first
- Open the phone's SIM settings and turn the SimCorner line on. On iPhone, start at Settings, Mobile Service or Mobile Data. On Galaxy, use Settings, Connections, SIM manager; on Pixel, Settings, Network and internet, SIMs.
- Select SimCorner for mobile data and disable automatic data switching. Keep Australian-line data roaming off. Follow the SimCorner order for its own roaming setting. If an Android control is shared or doesn't identify the line, temporarily switch the Australian line off for testing, recognising its calls and SMS will be unavailable.
- Compare any APN with the exact setup email. Photograph the original setting privately before changing it. If no APN is supplied or the field is hidden, ask SimCorner rather than borrowing another provider's value.
- Toggle aeroplane mode on briefly and off, then allow registration. Restart once if needed. Try LTE/4G temporarily if 5G won't register.
- If manual network selection is required, use only the network names supported by that order. An operator appearing in a search isn't proof the plan can use it.
- Turn Wi-Fi off and load one small webpage. If it works, confirm the selected data line before leaving the Wi-Fi connection.
Save settings and error screenshots before a network reset. A reset can remove saved Wi-Fi access and change mobile settings. Ask support to review the basics first, and don't confuse Reset Network Settings with deleting an eSIM or erasing the phone.
Check a lock through the right source
On iPhone, Settings → General → About → Carrier Lock should show No SIM restrictions for an unlocked handset. On Android, ask the original carrier with the model and IMEI privately. Seeing only one operator in a network search is not a reliable lock test.
If it is locked or the regional model doesn't support eSIM, repeated installation won't remove that restriction. Send the evidence to SimCorner and ask which remedy applies to the order.
Contact SimCorner during the trip
Its current terms direct a faulty-product request to support@simcorner.com. Use a subject such as Connection help for order [number] and include:
- Country/town and when the fault began.
- Exact plan, order number and purchase date.
- Model/software and whether the profile is missing or installed.
- Remaining balance, expiry, exact error and data-line/APN screenshots.
- The checks already tried.
Hide QR codes, passwords and unrelated private details. Ask: “Is this profile active for my location, which network/APN should it use, and is there an order-side restriction?” Keep working Wi-Fi available while support investigates, and save urgent bookings or directions offline.
If you already deleted it or need a refund
Tell support the profile was removed and whether it had connected or used data. Ask whether that exact order can be recovered on the intended handset before scanning it elsewhere or buying again. Recovery and cross-device transfer aren't guaranteed.
SimCorner's guarantee, terms and selected product conditions need to be read for that order. Request a review with the purchase date, activation/usage state and fault evidence. An unresolved fault, incompatible phone, spent plan and change of mind are different cases. A replacement purchase doesn't establish an automatic refund of the first plan.
Sources
Checked 30 October 2026: SimCorner terms and refund contact, Japan product families, Apple dual SIM, Pixel dual SIM and Samsung SIM setup. Use SimCorner's issued instructions for the plan it supplied.
