Kindle Basic 4 (2022)
Model BASIC4-2022. Firmware version details.
| Version Name | 5.18.6 |
| Version Code | 4586170041 |
| Uploaded | 2025-10-29 |
| Download URL | https://d1s31zyz7dcc2d.cloudfront.net/2025/10/29/f4221b7a-b442-44ca-b65a-15d2a97cf857/update-J1806-bellatrix_cava-041-fwo_4586170041.bin |
| MD5 | 82aeae200e6783e3673142207db53cdf |