This public ledger backs the second half of packet W6: “How do I change my username?” on
Profiles, folders, and interface and the “I get no notifications at all” section of
“Notifications repeat or keep coming back” on App problems. Luckgram source links are
pinned to iOS f42e2ad and Android 235be7c. A string in public source shows what a client can display; it does
not prove that a given installed release shows it. Usernames and notifications are Telegram features; nothing here
promises a Luckgram-only feature.
| Page | Statement | Evidence |
|---|---|---|
| features/profiles-and-folders.md | A username is the public name of the Telegram account; it is optional; anyone who finds you by it can write to you without your number | Telegram FAQ: do I need a username · Telegram FAQ: what are usernames · iOS strings:938 · Android strings:2074 |
| iPhone and iPad: Settings → Edit → Username; with no username, Set Username is also in Settings | iOS strings:295 · iOS strings:933 · iOS strings:3092 · PeerInfoHeaderNavigationButton.swift:221 · PeerInfoSettingsItems.swift:89-93 (Set Username, shown only when the account has no username) · PeerInfoSettingsItems.swift:546-548 (Username row in the editing items, settingsEditingItems at line 429) |
|
| Android: Settings, then Username | Android strings:2064 · Android strings:2078 · ProfileActivity.java:10730-10731 · ProfileActivity.java:13749-13752 · ProfileActivity.java:4659-4660 | |
| Type it; when the app says it is available, tap the check mark to save | iOS strings:945-946 · UsernameSetupController.swift:567 (done icon) · Android strings:2076-2077 · ChangeUsernameActivity.java:207 (done icon) | |
| a–z, 0–9 and underscores; capital letters don’t make a different username | Telegram FAQ: what can I use as my username (“case-insensitive”) · account.updateUsername (“Accepted characters: a-z (case-insensitive), 0-9 and underscores”) · iOS strings:938 · Android strings:2074 | |
| 5 to 32 characters, not starting with a number | account.updateUsername (“Length: 5-32 characters”) · iOS strings:939-940 · Android strings:2070 · Android strings:2072-2073 | |
| A username belongs to one account at a time; Sorry, this username is already taken. means choosing another | Telegram FAQ: username taken (“first-come – first-serve”) · account.updateUsername (USERNAME_OCCUPIED) · iOS strings:942 · Android strings:2067 |
|
After a change, the link is t.me/ plus the new username |
iOS strings:1217 (t.me/%@ built from the current username) · Android strings:2075 |
|
| Remove: leave it empty and save; no longer found in search; existing chats unaffected | Telegram FAQ: how do I delete my username (“save an empty username … people will no longer be able to find you via search. This will not affect existing conversations”) · account.updateUsername (“empty string if username is to be removed”) | |
| Collectible usernames are bought and sold on third-party platforms such as Fragment; Telegram cannot assign them | Telegram FAQ: collectible usernames · Telegram FAQ: username taken (“We cannot assign collectible usernames”) · Fragment collectibles | |
| “Taken but available for purchase” means a collectible username | iOS strings:8362 · Android strings:2068 · account.updateUsername (USERNAME_PURCHASE_AVAILABLE: “can be purchased on https://fragment.com”) |
|
| A taken basic username used on at least two of Facebook, Twitter and Instagram: Telegram can help via @Username_bot | Telegram FAQ: username taken | |
| help/app-problems.md (I get no notifications at all) | iPhone and iPad: a red ! next to Notifications and Sounds means notifications are off or limited | iOS strings:751 · PeerInfoSettingsItems.swift:304-311 · DeviceAccess.swift:55-62 (shown unless access is allowed; for a partly disabled or undetermined state only while the warning is not dismissed) |
| That screen offers a button to turn them on: Turn ON in Settings, Open Settings or Turn Notifications ON | iOS strings:3910-3911 · NotificationsAndSoundsController.swift:547-558 · row below | |
| Android: allow it if Luckgram asks to Turn on notifications | Android strings:341 · Android strings:347 · NotificationPermissionDialog.java:78 · NotificationPermissionDialog.java:98 | |
| Settings → Notifications and Sounds: Private Chats, Group Chats (Groups on Android) and Channels on | Telegram FAQ: notification problems (“Go to Telegram Settings — Notifications and Sounds, make sure that notifications are ON”) · iOS strings:751 · iOS strings:7142-7144 · iOS strings:7161-7162 · NotificationsAndSoundsController.swift:565-567 · Android strings:2373 · Android strings:2717-2719 · NotificationsSettingsActivity.java:1060-1082 | |
| Android: in each, tap More Options, then Importance High or Urgent | Android strings:8265 (NotifyMoreOptions) · NotificationsCustomSettingsActivity.java:1469, 1502-1507 (Importance only after More Options) · row below |
|
| A muted chat doesn’t notify; iPhone/iPad: chat name → Unmute; Android: chat ⋮ menu → Unmute | Telegram FAQ: notification problems (“Check whether contact or group is muted”) · iOS strings:5287 · PeerInfoHeaderNode.swift:2452 · Android strings:5560 · ChatActivity.java:4444 (mute item in the header ⋮ menu) · ChatActivity.java:19824 | |
| iPhone and iPad: a Focus such as Do Not Disturb silences apps not allowed in it; Settings → Focus | Apple iPhone User Guide: Set up a Focus (“Go to the Settings app … Tap Focus, then tap a Focus—for example, Do Not Disturb … Choose which apps to allow notifications from”) | |
| Android: Do Not Disturb lets only higher-priority notifications through | Android strings:2391 (“Higher priority notifications will work even if your phone is in Do Not Disturb mode”) | |
| Android: Google Play Services installed; allow the app in battery-saving software; Huawei and Xiaomi: Protected Apps / Autostart | Telegram FAQ: notification problems (Google Play Services; “If your phone uses some battery saving software, make sure that Telegram is whitelisted”; Huawei Protected Apps, Xiaomi Autostart). The advice is about the app that receives the notifications, here Luckgram | |
| Keep-Alive Service and Background Connection keep notifications reliable, at some battery cost | Android strings:2497-2500 · NotificationsSettingsActivity.java:1021-1023 · app-problems.md § Luckgram drains the battery · help-troubleshooting-2026-10-12.md | |
| iPhone and iPad: close the app, set its alert style to None, reopen, set it back to Banners | Telegram FAQ: notification problems (iOS steps) |
Fetched on 2026-10-16: telegram.org/faq; core.telegram.org/method/account.updateUsername, /api/links, /api/fragment; support.apple.com “Set up a Focus”.
| Planned statement | Why dropped |
|---|---|
| Changing or removing a username frees the old one for others | Telegram’s FAQ and API pages say a removed username can no longer be found and that usernames are first-come, first-served; none says when, or whether, the old one becomes available to someone else |
| Signed in on several devices, Telegram may deliver notifications only to the active device | No Telegram FAQ, API page or client string found that states this delivery rule |