This guide describes how to verify the integrity of a Zidoo Firmware file by checking the MD5/SHA-256 checksum file.
After downloading a Zidoo Firmware file you are advised to verify the MD5/SHA-256 checksum.
Eg: Posting from Zidoo forum
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/checksum1.webp)
or from my site
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/zidoo-z9s-beta-firmware-v2-3-33.webp)
Btw the OneDrive Direct Links are provided for better download speed. The files are always untouched.
Windows
Built-in Solution
C:Downloads>certutil -hashfile ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip MD5
MD5 hash of file ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip:
780d881438fbf64792e80024057236c8
CertUtil: hash file command completed successfully.
C:Downloads>certutil -hashfile ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip SHA256
SHA256 hash of file ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip:
433261d82ae1333473225898b95a34da2275e5762ee12d491229c5c94c06146c
CertUtil: hash file command completed successfully.
HashCheck
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/hashcheck1-1.webp)
double click Checksum File
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/hashcheck2b.webp)
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/hashcheck2a.webp)
Archive File Properties
![](https://www.mcbluna.net/wp/wp-content/uploads/guide-how-to-verify-integrity-of-zidoo-firmware-file/hashcheck3-1.webp)
Linux
Built-in solution
mcbluna@Homebase2:~$ md5sum ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip 780d881438fbf64792e80024057236c8 ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip
mcbluna@Homebase2:~$ sha256sum ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip 433261d82ae1333473225898b95a34da2275e5762ee12d491229c5c94c06146c ZIDOO_Z9S_N_v2.3.33_202006302037_ota-package.zip