Debrand e blocco bande su ZTE MF286D TIM

Buonasera, ho il modem MF286D(FWA TIM) con Firmware Elisa. Oggi ho provato a mettere una sim Fastweb con il suo APN all'interno ma il modem rimane con spia rossa 3G/4G e da li non si muove. La sim è nuova ha 2/3 giorni di vita. Ho provato a mettere la sim all'interno di un telefono e funziona. Qualcuno mi può aiutare?grazie

Everything...but if you do not know what is Openwrt forget about it

Since in Italy there is possibility to use B32 Band ( in TIM or Vodafone ) can you guys check , if MF286D is able to use it , by setting in set band value : 0x80000000 ?
Looks like officially in gui there is not possilbe , but modem it self accepting this value ( anfortunatly we don't have network to confirm).
There is also B2 - 0x2 and B5 - 0x10 , but they are not availble in your country as well....

EDIT: Maybe this band is only for supporting download and not working alone ?
Maybe it is needed to try with B1 , so value 0x80000001... or with B3 so 0x80000004 ... or with B7 0x80000040...

Here is full instruction how to check band controling on original firmware

We need your support to check b2,b5 and b32 controlling by AT commands on original firmware. We cannot test those bands in Poland and we do not have those bands even in our original gui.

Please avoid USB/uart adapter made on CH340 because one generates "bushes" on startup.
Properly working adapted is made on CP2102 oe PL2303.
Please connect PC with eg. teratem app via USB/uart cable and try to control modem module by means of AT commands as below:

Examples of AT command sending:
echo -e -n 'AT+ZNLOCKBAND=1,0,80005,0\r' > /dev/ttyUSB1
echo -e -n 'AT+ZCAINFO?\r' > /dev/ttyUSB1 && grep -m1 "ZCAINFO:" /dev/ttyUSB1
echo -e -n 'AT+ZNLOCKBAND?\r' > /dev/ttyUSB1 && grep -m1 "ZNLOCKBAND:" /dev/ttyUSB1

Band locking examples:
AT+ZNLOCKBAND=1,0,1,0 - Band 1
AT+ZNLOCKBAND=1,0,4,0 - Band 3
AT+ZNLOCKBAND=1,0,40,0 - Band 7
AT+ZNLOCKBAND=1,0,80000,0 - Band 20
AT+ZNLOCKBAND=1,0,41,0 - Band B1 +B7
AT+ZNLOCKBAND=1,0,45,0 - Band B1 + B3 + B7
AT+ZNLOCKBAND=1,0,80040,0 Band 7 + 20
AT+ZNLOCKBAND=1,0,80005,0 Band 20 + 1 +3
AT+ZNLOCKBAND=1,0,2,0 - Band 2
AT+ZNLOCKBAND=1,0,10,0 - Band 5
AT+ZNLOCKBAND=1,0,80000000,0 - Band 32
AT+ZNLOCKBAND=1,0,20080800C5,0 - All bands, this value is valid for polish bands, for italian bands can be different
you can calculate proper value for eg. b1+b3+b32 by simple sum.
Probably "real" all bands will have:
AT+ZNLOCKBAND=1,0,20880800D7,0

Other commands for your information
AT commands for APN setting:
AT+CGDCONT=1,"IP","internet","",0,0
AT+CGACT=1,1

aggregation information:
AT+ZCAINFO? returns state

primary cell information:
AT+ZCELLINFO? returns state
+ZCELLINFO: 70938895, 307, LTE B20, 6350

Permanent pci/earfcn locking, to remove locking see below:
AT+ZLOCKCELL=? command syntax help
AT+ZLOCKCELL:earfcn_tag,pci_tag
AT+ZLOCKCELL? returns state
AT+ZLOCKCELL=6350,307 here sets locking to earfcn=6350 and pci=307
and then AT+CFUN=1,1

Permanent pci/earfcn locking removal:
AT+ZLOCKCELL=0
and then modem restart by AT+CFUN=1,1 or router power reboot

locked bands information:
AT+ZNLOCKBAND? returns state
+ZNLOCKBAND: 80005,2000000680380

uplink aggregation information:
AT+ZULCA? returns state
AT+ZULCA=1 enables uplink aggregation
AT+ZULCA=0 disables upling aggregation

Modem rebooting:
AT+CFUN=1,1

Modem state:
AT+CFUN?

Buongiorno, ieri mio figlio mi ha dato un modem ZTE MF258A con unità esterna, il contratto FWA è già scaduto, non ci sono più vincoli, ho provato ad inserire apn Tim ibox, lo prende parte si accende la spia connesso ma dopo 10 secondi si spegne e il segnale del modem è dell'unità esterna lampeggia al massimo del segnale. Come posso risolvere? Mio figlio abita in altra località, pensate possa essere questo il problema? Grazie per le risposte.

sajack66 bisogna chiedere al 187 di sbloccarlo.