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Ultima setup for Mobile Legends: Bang Bang

Game guidesMobile Legends: Bang Bang Updated19 October 2026
Updating Advanced setup
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Ultima is Mobile Legends: Bang Bang with a built-in menu, installed as an IPA file. The phone is prepared once — find the UDID, get a certificate and install GBox, about 15 minutes. After that any update takes a couple of minutes.

Requirements

0 of 4 items

Tick what matches your device:

  • An iPhone or iPad on iOS 17 or newer, no jailbreak needed
  • Everything is done on the phone itself — no computer needed
  • An Apple certificate for your device's UDID — bought separately from the key; the preparation steps show how to activate it
  • The original Mobile Legends: Bang Bang from the App Store is not needed — the mod is the game itself with a built-in menu

System requirements

  • Operating system iOS 17 and newer
  • Processor Apple A12 and newer iPhone XR, SE 2, iPad
  • Launchers App Store
  • Built-in spoofer No

Preparation

Done once: UDID, certificate and GBox. The same steps are in the two short videos.
0 of 17 steps
  1. Open udid.tech in Safari and tap Get My UDID.
  2. Tap Download, then Allow in the “download …mobileconfig?” prompt. When “Profile Downloaded” appears, tap Close.
  3. Open the iPhone Settings — a Profile Downloaded row now sits at the very top. Tap it.
    • No such row — open General → VPN & Device Management and pick the profile there.
  4. Tap Install in the top right corner and enter the iPhone passcode.
  5. Tap Install once more in the “Install Profile” prompt.
  6. The iPhone returns to udid.tech, to the Device info section. Tap the UDID field — the number is copied.
  7. Open @DevCertBot, tap the button to use a key and send the certificate key, then this UDID when the bot asks for it. You get back the certificate — two files, .p12 and .mobileprovision, — its password and a link to install GBox.
    The certificate key is bought separately from the mod key — on its page or with the tick box when you pay for the mod. The certificate is tied to one device; one covers all Ultima mods.
  8. Save both certificate files to the phone: in Telegram tap the file → the Share icon → Save to Files.
  9. Open the GBox link and tap Launch.
  10. Tap Install, then Install again in the iOS prompt. The GBox icon appears on the home screen.
  11. Open GBox — iOS says “Developer Mode Required”, tap OK. Then open Settings → Privacy & Security and, at the very bottom, Developer Mode.
  12. Turn the switch on and tap Restart. After the restart unlock the iPhone, tap Turn On and enter the passcode.
  13. Open GBox, the Settings tab (bottom right) → Import resources, and pick both certificate files.
  14. Go to the Files tab (bottom left), tap the .p12 file → Import certificate, enter the password and tap OK.
  15. Tap the .mobileprovision file → Import.
  16. Check Settings → Certificate manager — the certificate shows a green Active.
  17. Open Settings → Signing settings, scroll down and set it as in the screenshot: Low compression; Lower required iOS version: 10.0, Remove UISupportedDevices and Remove mobileprovision after signing on; everything else off.

Launch

Every update installs the same way: the fresh file is signed and installed over the old one, the key stays.
0 of 10 steps
  1. If Mobile Legends: Bang Bang from the App Store is installed, delete it: iOS will not install a second copy of the same game.
    Playing as a guest? Link the account in the game settings first, or the progress goes away with the app.
  2. Open our files channel with the IPA files button at the top of the page. Find the latest file for Mobile Legends: Bang Bang (the caption names the game), tap it → Share → Save to Files.
  3. In GBox, on the Files tab, tap ⋯ in the top right → Import and pick the saved IPA file.
  4. When asked “Import to app library?”, tap Import and wait for it to finish.
  5. Open the Apps tab → Unsigned and tap Mobile Legends.
  6. Choose Sign.
  7. Tap the blue Advanced settings button.
  8. Check the switches — the same ones you set during preparation — and tap the red Sign button.
  9. When signing finishes, install the game: if GBox does not offer it, open Apps → Signed, tap the game → Install and confirm. The icon appears on the home screen.
  10. Launch the game, open the Ultima menu and paste the key on the Account tab.
    • The keyboard does not open — long-press the field and choose Paste.

Problems & fixes

7
“Unable to Install” / the game will not install
Delete Mobile Legends: Bang Bang from the App Store or an old copy signed with another certificate, check free storage and that the Certificate manager shows Active. Then sign and install again.
There is no Developer Mode item
It shows up only after GBox is installed. Install GBox, try to open it once — the item appears in Privacy & Security.
iOS asks to wait an hour
That is Stolen Device Protection: away from familiar places iOS delays settings changes. Wait for the timer to end or install the profile at home.
Untrusted Enterprise Developer
Open Settings → General → VPN & Device Management, pick the certificate profile and tap Trust.
The app stopped opening
Most likely Apple revoked the certificate. Get a new one, import it into GBox, re-sign the same IPA file and install it over the old one — no need to enter the key again.
The menu stopped working after a game update
After a game update Ultima switches the mod off while it releases a new version and gives the time back to the keys. As soon as a fresh file appears in the channel, install it over the old one using the install steps.
The certificate password is rejected
The password comes with the certificate files. Check the keyboard layout and that you import the .p12 file, not the .mobileprovision.

FAQ

5
Do I need a jailbreak or a computer?
No. Everything installs on the iPhone or iPad itself, iOS 17 or newer.
What is included?
A key for the chosen term and access to the channel with the IPA files. The Apple certificate for your UDID is bought separately.
Do I need Mobile Legends: Bang Bang from the App Store?
No. The mod is the game itself with a built-in menu. The App Store original is deleted before installing.
How do I update the mod?
After a game update a new IPA file appears in the channel. Sign it the same way and install it over the old one — the key stays the same.
How long does the certificate last?
Up to a year, but Apple can revoke it earlier. Then a new certificate and re-signing the same file are enough.

Still stuck?

Write to support: send a screenshot of the error and your iPhone model, and we will sort it out.

Contact support