RB2011UAS-RM - unable to upgrade routerboot

Hello
I have a RB2011UAS-RM with 5.25
I have in the past downgraded the routerboot firmware to 2.41 with success.
Now I am going to upgrade to 3.07 (I hope that crashes that happened with 3.02 will not be here) but even if it tells that routerboot was upgraded successfully, after reboot I still get 2.41.

how can I do?

/system routerboard upgrade
/system reboot

Do you think I am dumb?

I have already done that command, did you read my post before answering?

It tells that upgrade was done successfully but it is not.. after reboot I still have 2.41

Have you tried upload fwf file?

http://routerboard.com/fwf/158/ar9344-3.07.fwf

Uploaded and upgraded, but still 2.41
maybe some settings in bootloader?

http://forum.mikrotik.com/t/system-routerboard-upgrade-fails/39633/1

/system routerboard settings set force-backup-booter=no
/system routerboard upgrade
/system reboot

this is my conf
baud-rate: 115200
boot-delay: 2s
enter-setup-on: any-key
boot-device: nand-if-fail-then-ethernet
cpu-frequency: 600MHz
boot-protocol: bootp
enable-jumper-reset: yes
force-backup-booter: no
silent-boot: no

I did as you pointed me, but the firmware is still 2.41

hi i need this version of bootloader to install mikrotik 5.xx please if someone have this file upload that

ar9344-3.07.fwf

AFAIK Mikrotik doesn’t have a place with routerboot images, so you could only write an email to support@mikrotik.com.