T22-P logo provisioning

Hi,

yes again logo stuff:

Firmware 7.73.0.50

Config:
lcd_logo.delete=http://localhost/all
phone_setting.lcd_logo.mode=2
lcd_logo.url=http://192.168.0.251/prov/yealink/logo.dob

Syslog:
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > Request Line: GET /prov/yealink/y000000000005.cfg HTTP/1.1
192.168.18.130 20/11 17:12:53.516
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > Host: 192.168.18.251
192.168.18.130 20/11 17:12:53.516
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > User-Agent: Yealink SIP-T22P 7.73.0.50 00:15:65:19:85:3f
192.168.18.130 20/11 17:12:53.516
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > process response
192.168.18.130 20/11 17:12:53.517
<133>Nov 20 16:12:45 LIBD[349]: HTTP<5+notice> response code: 200
192.168.18.130 20/11 17:12:53.517
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > Content-Length: 412
192.168.18.130 20/11 17:12:53.517
<133>Nov 20 16:12:45 LIBD[349]: HTTP<5+notice> response process finish!
192.168.18.130 20/11 17:12:53.524
<133>Nov 20 16:12:45 LIBD[349]: HTTP<5+notice> recv : 412 bytes
192.168.18.130 20/11 17:12:53.524
<134>Nov 20 16:12:45 ATP [349]: ATP <6+info > need_cmp_md5=1
192.168.18.130 20/11 17:12:53.536
<134>Nov 20 16:12:45 ATP [349]: ATP <6+info > cfg md5 same!
192.168.18.130 20/11 17:12:53.556
<134>Nov 20 16:12:45 LIBD[349]: DCMN<6+info > Connecting 192.168.18.251:80
192.168.18.130 20/11 17:12:53.562
<134>Nov 20 16:12:45 LIBD[349]: DCMN<6+info > Connecting IP = 192.168.18.251, Port = 80
192.168.18.130 20/11 17:12:53.564
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > Request Line: GET /prov/yealink/logo.dob HTTP/1.1
192.168.18.130 20/11 17:12:53.564
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > Host: 192.168.18.251
192.168.18.130 20/11 17:12:53.566
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > User-Agent: Yealink SIP-T22P 7.73.0.50 00:15:65:19:85:3f
192.168.18.130 20/11 17:12:53.566
<134>Nov 20 16:12:45 LIBD[349]: HTTP<6+info > process response
192.168.18.130 20/11 17:12:53.566
<133>Nov 20 16:12:46 LIBD[349]: HTTP<5+notice> response code: 200
192.168.18.130 20/11 17:12:53.733
<134>Nov 20 16:12:46 LIBD[349]: HTTP<6+info > Content-Length: 9678
192.168.18.130 20/11 17:12:53.744
<133>Nov 20 16:12:46 LIBD[349]: HTTP<5+notice> response process finish!
192.168.18.130 20/11 17:12:53.745
<133>Nov 20 16:12:46 LIBD[349]: HTTP<5+notice> recv : 9678 bytes
192.168.18.130 20/11 17:12:53.745
<132>Nov 20 16:12:46 ATP [349]: ATP <4+warnin> UpgradePrev Exception
192.168.18.130 20/11 17:12:53.753
<134>Nov 20 16:12:46 ATP [349]: ATP <6+info > AUTOP: lcd_logo.url [Fail].


If I upload the file via web gui it works.
So the file itself has the right format.

Any ideas?

EDNT