500B子機ファームアップデーター

"500B Handset Firmware Updater" is an application for updating the firmware of RTR500B series handsets.

The update resolves the issue disclosed in the "Apology and Request Regarding the Wireless Communication Function of Our Products" section.
Please check the following page for details on the content and applicable products.

Apology and request regarding the wireless communication function of our products
https://www.tandd.co.jp/news/detail.html?id=703

■Target equipment
The following products shipped between September 2020 and September 24, 2024
- RTR501B, RTR501BL
- RTR502B, RTR502BL
- RTR503B, RTR503BL
- RTR505B, RTR505BL
- RTR507B, RTR507BL
*Old RTR-500 series products without B or BL at the end of the model number (e.g. RTR-501, RTR-501L) are not subject to this issue.

■Update procedure
Information on RTR500B handset firmware update
https://www.tandd.co.jp/update_info/?t=androidos