If you bought the modem unlocked/unbranded directly from ZTE:
If official vendors provide signing or checksums, verify using these steps:
A. Checksum verification (MD5/SHA):
B. Digital signatures:
C. Source validation:
D. File metadata:
If the vendor/ISP provides no checksum/signing, treat the download as higher risk. Prefer contacting vendor/ISP support for verification. download firmware modem zte zxv10 w300 series verified
Upload the file to VirusTotal – if more than 3 engines flag it as a Trojan (especially Mirai or Gafgyt variants), delete it immediately.
If you want, I can: