Most phones receive the APN automatically when a travel eSIM is installed. Manual entry is a troubleshooting step, not something every Brazil traveller must do.
The APN tells the mobile network how to route data. Editing unrelated fields or copying settings from a local Brazilian SIM can prevent a travel eSIM from connecting.
Before changing the APN, confirm that the Brazil line is selected for data and that Data Roaming is enabled on it.
Quick answer: If your NoveSIM Brazil instructions require a manual APN, enter data.esim exactly. Leave username and password blank unless the order states otherwise, save the setting and restart mobile data. Do not delete the eSIM.
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When Should You Enter an APN?
Check the APN when the phone has registered on a network but websites and apps do not load. If the phone shows no service at all, first check coverage, line status and network selection because an APN does not create radio signal.
| Field | Value |
|---|---|
| APN | data.esim |
| Username | Leave blank unless instructed |
| Password | Leave blank unless instructed |
APN Steps for iPhone
- Open Settings and Cellular or Mobile Service.
- Select the Brazil eSIM.
- Open Cellular Data Network if the menu is available.
- Enter data.esim in the Cellular Data APN field.
- Return to settings, toggle Airplane Mode and test with Wi-Fi off.
Some carrier profiles hide APN editing. Do not install an unofficial profile to expose the menu; contact support if the required field is unavailable.
APN Steps for Android
- Open Network & Internet, Connections or SIM Manager.
- Select the Brazil eSIM and open Access Point Names.
- Create or edit the travel-eSIM entry.
- Enter data.esim, save it and select it.
- Toggle Airplane Mode, then test mobile data.
Menu names differ by Samsung, Pixel and other manufacturers. Make sure you are editing the travel eSIM rather than the home SIM.
If data.esim Does Not Fix It
Recheck the selected data line, Data Roaming, validity and remaining allowance. Leave network selection on Automatic, then follow Brazil eSIM troubleshooting. Do not add proxy, port, MMSC or authentication values from an unrelated provider.
First Decide Whether the APN Is the Real Problem
An APN becomes relevant after the phone has registered on a mobile network. If the status bar shows No Service, SOS only or no operator name, start with coverage, line status and network selection. Editing data-routing fields cannot create radio signal or authorise an unsupported network.
A missing or incorrect APN is more plausible when the Brazil line shows signal but a browser cannot load any page with Wi-Fi switched off. Even then, check that Brazil is selected as the mobile-data line, Data Roaming is enabled on it and the plan is active with remaining allowance. These settings produce similar symptoms and are easier to verify.
| Symptom | Check before editing APN |
|---|---|
| No signal or operator name | Coverage, enabled line and network registration |
| Signal but no webpage loads | Data line, roaming, validity, allowance and APN |
| One app fails | App permissions, server status or app-specific settings |
| Hotspot fails but phone data works | Plan tethering support and hotspot configuration |
| Data works but is slow | Congestion, signal, high-speed threshold and background use |
What the APN Fields Mean
The Access Point Name tells the network which data gateway the profile should use. The APN field is not the same as the profile name shown to the traveller. Give a new Android entry a clear label such as “NoveSIM Brazil,” but enter data.esim in the actual APN field.
Username, password, proxy, port, server, MMSC, MMS proxy, authentication type and protocol are separate controls. Leave them unchanged or blank unless the exact NoveSIM order instructions provide values. Settings copied from a Brazilian domestic operator or another eSIM provider can stop traffic because they point to a different service.
Enter data.esim on iPhone
- Open Settings and choose Cellular or Mobile Service.
- Select the line labelled Brazil.
- Open Cellular Data Network when that menu is available.
- Enter data.esim in the Cellular Data APN field.
- Leave username and password blank unless instructed otherwise.
- Return to the previous screen so iOS saves the value.
- Toggle Airplane Mode for about 30 seconds and test with Wi-Fi off.
Some carrier bundles hide Cellular Data Network or manage the APN automatically. Do not install an unofficial configuration profile simply to expose the menu. If manual entry is required but the field is unavailable, send the exact iPhone model, iOS version and a safe screenshot to NoveSIM Support.
If Personal Hotspot has its own APN field, do not assume that it needs a different value. First verify that the selected product permits tethering and that mobile data works on the iPhone itself. Follow the Brazil hotspot guide before changing additional fields.
Enter data.esim on Samsung Galaxy
- Open Settings > Connections > Mobile Networks.
- Choose Access Point Names for the Brazil eSIM.
- Open the travel entry or tap Add.
- Give it a recognisable name.
- Enter data.esim in the APN field.
- Save the entry and select it with the radio button.
- Refresh Airplane Mode and test mobile data.
Make sure SIM Manager still assigns mobile data to Brazil. Editing an entry under the home SIM will not fix the travel line and could disrupt the primary carrier’s service. Menu wording varies between One UI versions, so use Settings search if Access Point Names is not in the expected place.
Enter data.esim on Google Pixel and Other Android Phones
On Pixel, open Settings > Network & Internet > SIMs, select Brazil and open Access Point Names. Use the plus control to create an entry when needed, enter a clear name and data.esim as the APN, save it and make sure it is selected. Motorola, Xiaomi, Oppo and other manufacturers may place the same controls under Mobile Network or SIM Cards.
Do not change MCC or MNC values unless the order or support specifically instructs you. Android may populate those identifiers from the eSIM. An incorrect value can cause the saved entry to disappear from the visible list or fail to match the active profile.
Save, Select and Test the APN
On Android, saving an APN does not always select it. Return to the APN list and confirm that the new entry has the active indicator. On iPhone, return to the previous settings screen, then refresh the connection. Turn Wi-Fi off during the test so a successful webpage genuinely proves mobile data is working.
Open a normal HTTPS webpage and a second unrelated site. If only one application fails, the mobile connection may be healthy and the issue may belong to that app. Avoid repeated speed tests at this stage because they can consume data without clarifying whether basic routing works.
APN Settings with Dual SIM
Each line has its own network configuration. Before editing, confirm that the settings page belongs to the Brazil eSIM. Select Brazil as the preferred mobile-data SIM, enable Data Roaming on it and turn off automatic data switching. Otherwise the phone may test the home SIM while you believe it is testing the travel profile.
Keep home-line roaming off if avoiding unintended data charges is the goal. Calls, messages and voicemail on the home number can still follow the carrier’s separate rates. The Brazil dual-SIM guide explains the full line assignment.
APN, Coverage and Network Selection Are Different
Coverage determines whether a usable radio signal exists. Network selection determines which authorised operator the phone attempts to register with. The APN controls the data route after registration. Treating all three as one setting leads to unnecessary changes.
For No Service, consult Brazil eSIM coverage and keep network selection on Automatic. If registration repeatedly fails in a covered area, use the controlled steps in manual network selection. Only return to the APN when signal exists but data traffic does not.
What to Do If the APN Keeps Resetting
First confirm that you are editing the active travel line and pressing Save on Android. A carrier profile may overwrite or manage the APN, especially after a restart or network change. Record what happens and avoid repeatedly creating duplicate entries.
Do not install an unofficial APN app or configuration profile. Contact support with the exact model, software version, current city and safe before-and-after screenshots. Hide the QR code, activation code, order details and personal identifiers.
If data.esim Still Produces No Internet
- Confirm that the Brazil eSIM is switched on.
- Select Brazil for mobile data.
- Enable Data Roaming on that line.
- Disable automatic switching to the home SIM.
- Check validity and remaining data.
- Return network selection to Automatic.
- Toggle Airplane Mode and restart once.
- Keep the eSIM installed and contact support if the problem remains.
Do not delete and reinstall the profile. Some QR codes are valid for one download, and deletion can turn a routing problem into a profile-recovery problem. Use the symptom-based Brazil eSIM not working guide before any broad network reset.
Related Articles
- Brazil eSIM plans
- Mobile internet in Brazil
- Install a Brazil eSIM
- Activate a Brazil eSIM
- Brazil eSIM on iPhone
- Brazil eSIM on Android
- Brazil dual-SIM settings
- Brazil eSIM hotspot
- Brazil eSIM not working
- Manual network selection
- Slow Brazil eSIM
- Brazil eSIM coverage
- How much data for Brazil
- eSIM-compatible devices
- NoveSIM Support
FAQ
What is the NoveSIM APN for Brazil?
Use data.esim when manual APN entry is required for the selected plan.
Should I add a username and password?
Leave them blank unless the order instructions explicitly provide values.
Why can I not see the APN menu?
The carrier profile or phone software may manage it automatically. Do not install an unofficial configuration profile; ask support for the plan-specific next step.
Will changing the APN improve weak signal?
No. APN settings affect data routing after network registration; they do not extend radio coverage.
Final Recommendation
Edit the APN only when the Brazil eSIM has registered but mobile data does not route, or when the plan instructions explicitly require manual entry. Confirm the selected data line, roaming, validity and allowance first.
Enter data.esim exactly in the APN field and leave unrelated values unchanged unless the order provides them. Save and select the entry, refresh the connection and test a normal webpage with Wi-Fi off.
If data still fails, separate coverage, registration and routing symptoms rather than adding random settings. Keep the eSIM installed and send support the exact model, location and safe screenshots for plan-specific diagnosis.