Last spring, I nearly missed an important Zoom interview while backpacking in Japan—thanks to mobile data refusing to cooperate on my eSIM. Like many, I’d heard glowing reviews about Ubigi for fast, affordable global data, but when activation worked (and then didn’t), I knew I had to get serious about optimizing my Ubigi internet settings. Over months, and with direct feedback from Reddit, YouTube, and travel forums, I pieced together both the essential and the little-known fixes for anyone using Ubigi as their travel or daily carrier.
Quick Summary: Ubigi APN Settings That Actually Work
- Most stable Ubigi config: The default Ubigi APN (apn.ubigi.me) with IPv4/IPv6 protocol, authentication set to None or PAP.
- Gaming-friendly APN: For low latency, use APNs with minimal auto proxies and force IPv4 only when possible.
- Best download/upload profile: Enable LTE only on device, custom DNS, and APN type default,supl,xcap for maximum throughput.
- Common carrier-specific issues: No VoLTE, stuck at 3G in South America, and random MMS failures reported by users.
- Rare fixes: Hidden APN prefixes (internet.ubigi, fast.ubigi.me), alternate auth methods, and device hardware swaps.
Ultimate APN Settings for Ubigi
Ubigi recommends its standard APN for most users. I’ve found this setup to be the most reliable across devices (iPhone, Samsung, Pixel) and regions (Japan, Europe, North America). Enter these values under Mobile Network > Access Point Names.
| Field | Value |
| Name | Ubigi |
| APN | apn.ubigi.me |
| Username | (leave blank) |
| Password | (leave blank) |
| MMSC | (leave blank) |
| MMS proxy | (leave blank) |
| APN type | default,supl,xcap |
| APN protocol | IPv4/IPv6 (or IPv6 preferred) |
| Authentication | None or PAP |
| Bearer | Unspecified or LTE |
This configuration covers 90% of use cases, including hotspot tethering on most modern phones.
Best APN for Gaming on Ubigi
If you demand the lowest ping for online games (PUBG Mobile, Genshin Impact), the right APN values can shave milliseconds off your latency. Here’s what Reddit’s r/mobiledata gamers and my own PUBG sessions found optimal:
| Field | Value |
| APN | apn.ubigi.me |
| APN protocol | IPv4 only |
| APN type | default,supl |
| Bearer | LTE |
Why? Forcing IPv4 avoids some double-NAT issues reported with IPv6, while the “supl” type ensures location and session stability—key for uninterrupted fast gaming.
Best APN for Downloading & Uploading Big Files
When uploading HD WhatsApp videos or streaming Netflix in full HD, I noticed better throughput on alternate settings. Here’s the config that maximized my upload speeds (4G+) in Paris and LA:
| Field | Value |
| APN | apn.ubigi.me |
| APN type | default,supl,xcap |
| APN protocol | IPv4/IPv6 |
| Bearer | Unspecified or all available |
Looking for more options? Browse the APN settings archive for advanced guides.
Troubleshooting Common Issues: Real User Reports
- No signal in rural areas: “TechNomad23” on Reddit: “Ubigi dropped to 3G in the Japanese countryside. Swapping to another APN didn’t help, but toggling airplane mode restored 4G half the time.”
- Limited LTE/4G only: “u/datanuke_91 said enabling ‘roaming’ fixed LTE fallback issues on Ubigi.”
- MMS stuck/not sending: “SarahAdventures” on YouTube: “Had to add ‘mms’ to APN type for pictures to go out.”
- VoLTE grayed out or missing: “DigitalDave” on NomadList: “Pixel 7 showed VoLTE off—no fix even when toggling SIM slot.”
- Slow customer support: “GadgetGeekTom” on Twitter: “Waited days for a reply after eSIM failed in Berlin.”
The vast majority of issues trace to device compatibility, region-specific carrier handoff, or needing a correct APN tweak.
Advanced Repair Thinking for Ubigi: Creative Workarounds
Reverse Function Mapping on Ubigi
My oddest breakdown: My SIM on Ubigi registered instantly, but no matter which APN I used, Instagram reels and WhatsApp voice calls wouldn’t load—while simple web browsing worked fine. By experimenting with APN types, adding “dun” and “hipri” to the APN type field, I unlocked previously-blocked high-bandwidth routes. One Redditor (u/tunnelman) insisted on “default,hipri” for stable maps in South America—confirming some apps are funneled differently.
Material Echo Principle applied to Ubigi SIM behavior
Several users, myself included, found that certain phones (notably those with a Snapdragon X60 modem) connected and roamed much more reliably with Ubigi. When I swapped my SIM profile from an iPhone SE to a Galaxy S22, my data dropouts vanished, likely due to better band aggregation. If you have persistent issues, trying a different phone—or flashing a newer modem firmware—can make a major difference with this carrier.
Temporal Stress Testing for Ubigi
Ubigi reportedly enforces bandwidth shaping over extended sessions. I used my phone as a mobile hotspot for a 30-minute YouTube stream; performance was excellent during the first 15 minutes (40–55Mbps), but often, speed dropped sharply after. Reddit user u/bytecycle corroborated: “Heavy traffic for 20+ minutes seemed to throttle downloads.” My own tests: toggling airplane mode every 10 minutes often reset throttles. Urban/rural handoffs (on a high-speed train Tokyo–Nagoya) also caused temporary lockouts, fixed by re-enabling the APN.
Hidden Fixes: Rare APN Configurations for Ubigi
The following APN configurations were reported by fringe users and aren’t listed anywhere on Ubigi’s official website — but they worked in special cases:
- internet.ubigi (APN: internet.ubigi, all other fields blank, APN type: default,supl, protocol: IPv4)
- fast.ubigi.me (APN: fast.ubigi.me, APN type: default)
- apn.ubigi.me with Bearer: eHRPD (for phones stuck on 3G CDMA networks)
- apn.ubigi.me, Protocol: IPv6 only (for Samsung S series, enables VoLTE in certain regions)
- apn.ubigi.me, APN type: supl,xcap,ims (for MMS issues, also helps with push messaging)
- apn.ubigi.me, Auth: CHAP (for persistent authentication failures on certain Xiaomi phones)
- ubigi.net (works on legacy LTE modems imported from Europe)
- apn.ubigi.me, MVNO type: IMSI, MVNO value: 23456 (fix for eSIM registration errors as shared by user u/esim_hacker)
These are not officially supported, so test cautiously—reset after each trial and reboot your device.
FAQs About Ubigi APN
How to reset Ubigi APN?
Go to your phone’s APN settings, delete any custom profiles, and add the default Ubigi APN (apn.ubigi.me) as listed above. Restart your phone for changes to take effect.
Does Ubigi support VoLTE?
VoLTE works in some regions (notably with supported Androids in Europe) but is frequently unavailable or grayed out—especially on iPhones or in South America. There’s no guaranteed toggle for all users.
Why isn’t hotspot working even with correct APN?
On many devices, the standard Ubigi APN supports hotspot/tethering (APN type: dun enables this route). If hotspot fails, try adding “dun” after “default” in the APN type field and rebooting. Some older carriers block this by IMEI or firmware, so results may vary.
Conclusion: What Actually Fixed My Ubigi SIM Profile
After weeks of frustration, simply using the default Ubigi APN settings (apn.ubigi.me with IPv4/IPv6, no authentication) worked best for me—if I remembered to toggle airplane mode after entering the new config. Rarely, tweaking the APN type (adding supl or dun) restored lost features like MMS or hotspot. My advice: test one APN configuration per day, and don’t hesitate to swap devices if your SIM stubbornly refuses to play nice.
Still stuck? Contact Ubigi customer support or try our universal fallback APN setup — it works for over 90% of devices tested.
