Work out whether it is the OS version or the hardware
Apps set a minimum OS version, and once a model stops receiving updates it can fall out of support. The good news is that accounts live server-side, so switching clients affects nothing and the web is usually a ready alternative.
What to prepare before you start
These five things cover almost every delay people run into: Find your phone model and current OS version.
Check whether the device can upgrade to a supported OS. Confirm remaining storage space.
Have a working browser available as an alternative.
Four routes you can take
Try these in descending order of practicality: Upgrade first: on devices that still receive updates, moving to a supported version lets you install normally.
Free storage: remove apps and media you no longer use, then retry. Use the web: open the official entrance in a browser, where core features usually work.
Change device: if the OS no longer receives updates, switching phones is the only lasting fix. During the transition do not keep a login session on the old device; sign out when done.
Fees, limits and processing times
Numbers change from time to time, always confirm on the official fee page before you commit size: Official entry: type binance.com yourself or use your own bookmark, then check the padlock and the exact spelling before typing any password.
App install: search the publisher name "Binance" on App Store / Google Play, or pull the APK from the official download page rather than a third-party store. In-app chat is usually the fastest channel for account issues, and the help centre holds step-by-step articles for most problems.
For anything touching funds, open a ticket and keep the case number; never share passwords, codes or seed phrases with anyone claiming to be support. The core line-up covers spot, margin, USD-margined and coin-margined futures, and options in supported regions.
Earn products, Binance Pay and the Web3 wallet sit alongside the exchange for users who want yield, payments or self-custody.
The Binance-specific part
The Binance client raises its minimum version as platforms evolve, so older models may gradually lose support. Using the web during the transition is usually fine for viewing and trading; push and biometrics are the main omissions.
Frequently asked questions
Will data on the old phone be lost
No. Signing in on a new device leaves balances and orders untouched.
Can the web replace the app
For most core actions yes; push notifications and biometric unlock are the main gaps.
Can I force an old build to install
Not advisable. Old builds miss security fixes and may no longer be supported server-side.
Risk notes and next steps
Keep reading:美股行情总览;用 USDT 买 VOO / QQQ 的完整步骤;特斯拉（TSLA）实时股价. Never resort to old-version packages from unknown sources just to install.
Sign out and wipe data before disposing of an old device. On a new phone complete the second factor before moving funds.
