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What’s new Launch animation of a phone USB-linked to an ESP board, with data flowing through the cable and the board LED lighting up After a flash, a clear RESET reminder, then Connect on Devices, then Console — Console stays locked until the board is connected Identify chip as a full-width button at the bottom of device Details, under Manufacturer Read real chip and flash-size details from the board (family, MAC, flash size, and more) before you flash
ESP32 USB flasher with console, layouts & flash history for Android.
FlashBridge is a professional Android tool for flashing and working with ESP devices over USB OTG — built for makers, embedded engineers, and field work. Flash firmware from your phone. No laptop required for common ESP workflows. WHAT YOU CAN DO • Quick Flash — guided flashing for connected ESP boards • Advanced Flash Studio — multi-binary layouts with address control • Partition map & esptool-style command preview • Firmware Library — import, organize, and reuse binaries • Serial Console — monitor and talk to your device over UART • Flash History — keep an engineering record of what you flashed • Project profiles — save preferred device/firmware setups • Guided tips — bootloader, OTG, and recovery help when you need it BUILT FOR REAL HARDWARE FlashBridge uses Android USB host to detect boards, request permission, and run flash/console sessions on-device. Your firmware files and history stay on your phone unless you choose to export or share them. Designed for ESP workflows (including ESP32-class devices) with clear progress, errors, and recovery guidance. WHO IT’S FOR • Embedded developers flashing boards at the bench • Makers programming ESP projects without a PC • Field engineers updating firmware on site • Anyone who wants a focused mobile ESP flash toolkit KEY HIGHLIGHTS • Local-first — core flashing happens on your device • Clear flash progress and failure recovery • Advanced multi-partition layouts for power users • Console handoff after a successful flash • Dark, engineering-focused UI for long sessions GETTING STARTED 1. Connect your ESP board with a USB-OTG capable Android phone/tablet 2. Allow USB permission when prompted 3. Choose firmware (library, bundled sample, or custom file) 4. Flash — then open Console if you need serial output TIPS • Use a quality data USB cable (not charge-only) • Some phones need an OTG adapter • Put the board in download/bootloader mode if auto-reset isn’t available • Keep USB connected during flashing PRIVACY FlashBridge is built as a local engineering utility. It does not require an account. Firmware and flash records remain on your device unless you export/share them. See our privacy policy on the store listing for details. SUPPORT Need help with USB permission, OTG, or flash failures? Check in-app guidance under Devices, Flash, and More → About. FlashBridge — ESP flashing, console, and firmware tools in your pocket.