Help centre: install, fix and manage your eSIM
16 step-by-step guides for iPhone and Android, reviewed monthly. Search below or pick a category. Support is 24/7 on WhatsApp and email.
Most read
The Universal eSIMs help centre has 16 guides in 4 categories: installing on iPhone and Android, troubleshooting no-service and no-data problems, top-ups and refunds, and phone and dual-SIM questions. Each guide opens with a direct answer and takes under 10 minutes to act on. Support is available 24/7 on WhatsApp and email in English and Hindi.
Search the help centre
Leave your name, email and phone number and we will set this up for you and reply on WhatsApp within minutes.
Get startedInstalling your eSIM
How to install an eSIM on iPhone (iOS 17 and iOS 18)
QR code, manual SM-DP+ entry, line labels, default line settings and data roaming, in the order iOS asks for them.
How to install an eSIM on Android: Samsung, Pixel and OnePlus
The exact menu paths for One UI, stock Android on Pixel and OxygenOS, with the manual activation-code route and the roaming settings that trip people up..
Troubleshooting
eSIM troubleshooting: no service, no data, APN and install errors
Twelve problems and their fixes, from "no service" after landing to "PDP authentication failure" and "cellular plan cannot be added".
eSIM not activating? Seven checks that fix it
The eSIM installed but will not connect, or shows Activating forever.
Hotspot not working on your eSIM? Five fixes
Hotspot is allowed on every Universal eSIMs plan.
5G not showing on your travel eSIM? Why, and when it matters
Roaming profiles often land on LTE even where the network has 5G.
Plans, top-ups and refunds
How to top up your eSIM without a new QR code
Add data or days to an installed Universal eSIM from the app or your account in about one minute, mid-trip, with no reinstall..
eSIM refunds: what is refundable, when, and how to claim
The plain-language version of our refund policy: full refund when the eSIM cannot be installed, 30 days for unused plans, and what happens once a plan has connected..
KYC for physical travel SIMs in India: why it is needed and which documents work
Travel eSIMs need no KYC.
How to check your eSIM data balance
Three ways to see remaining data and days: the Universal eSIMs app, your phone's own usage counter, and the balance email..
Phones and dual SIM
Should you delete the eSIM after your trip? How to do it safely
Deleting a travel eSIM frees a profile slot and tidies settings, but a deleted profile cannot be reinstalled.
Dual-SIM setup for Indian travellers: keep your number, use the eSIM for data
The exact settings so your Jio, Airtel or Vi number keeps receiving OTPs and WhatsApp while all data goes through the travel eSIM, without a roaming bill..
WhatsApp on a travel eSIM: does your number change?
No.
Using an eSIM on a dual-SIM iPhone: labels, default lines and roaming
How iPhone handles two lines, which settings decide what goes where, and the three screens to check before you fly..
How to transfer an eSIM to a new phone (and when you cannot)
Home-operator eSIMs transfer with iOS and Android tools.
What is an EID? The 32-digit number that proves your phone has eSIM
The EID identifies the eSIM chip in your phone.
Other resources
• Compatibility checker
· • Data calculator
· • Travel connectivity guides
· • Compare providers
· • Refund policy
· • Fair usage
Frequently asked questions
How do I contact Universal eSIMs support?
WhatsApp at [WhatsApp number] or email hello@universalesims.com, 24 hours a day in English and Hindi. Have your order number and phone model ready. Most install issues are solved within 10 minutes.
Which guide should I read first?
Before travel: the install guide for your phone and the dual-SIM setup. After landing without service: troubleshooting. Mid-trip: top-up and data balance.
Do I need to install the eSIM before I fly?
Yes, on Wi-Fi at home. Installation needs an internet connection; activation happens on first connection abroad.
Where is the refund policy?
The plain-language version is in refunds; the legal text is in the refund policy.
Can I get help in Hindi?
Yes. WhatsApp and email support is available in English and Hindi around the clock.
How quickly are install problems solved?
About 9 in 10 are solved in under 10 minutes with the troubleshooting steps or a WhatsApp reply. Replacement profiles for a changed phone take a few hours.
Still stuck?
Message us on WhatsApp with your order number and phone model. Average first reply under 5 minutes.