[Help] I have 2 F5-221 devices but only 1 will update to TOS7  [SOLVED]

Discuss, seek assistance, and report issues related to hardware components, such as hardware platforms, memory, network ports, power supplies, UPS systems, and so on.
User avatar
ChadH42
Posts: 27
Joined: 26 Nov 2024, 07:13
United States of America

[Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by ChadH42 »

I have 2 F5-221 NAS devices. I have successfully installed TOS7 on the older device but the newer one will not boot after attempting to install TOS7. I have opened up both units to see what differences there are and here is what I know so far:

Older NAS
1) Older unit has a sticker on the "motherboard" stating TM-J3355-2G2L V2.0 and another sticker with 000-F5221-FBA008-0001
2) Older unit has a MAPL0304V16 BIOS
3) Older unit has no additional RAM
4) Successfully upgraded to TOS7 392

Newer NAS
1) Newer unit has a sticker stating TM-J3355-2G2L V3.0 and another sticker with 000-F5221-FBA002-2000
2) Newer unit has a MAPL0304V22
3) New unit has a 2GB RAM chip installed for 8 months without issue
4) will not re-boot when upgrading to TOS7 392 (tried using both .ins and .bz2 methods over 10 times).

Any idea why the older one works and the newer one doesn't???

Thank you, Chad Henderson (ChadH42)
User avatar
OrionXie
TM Support
Posts: 151
Joined: 14 Apr 2025, 18:30
Saudi Arabia

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by OrionXie »

ChadH42 wrote: 15 Feb 2026, 02:05
Hello,

It seems your new F5-221 has about 2GB of newly added RAM, right? If so, you can try the following three methods:

1. First, upgrade to the latest TOS 7.0.0403 system version and see if it restores normal operation;

2. Try the following guide to set it up and see;

viewtopic.php?t=9413

3. If methods 1 and 2 still don't work, you can try removing the newly added 2GB of RAM and then try again.
To contact our team, please send email to following addresses. "(at)" = "@"
Technical team: support(at)terra-master.com
Service team: service(at)terra-master.com
User avatar
Gremlin
Gold Member
Posts: 1628
Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by Gremlin »

your new F5-221 has about 2GB of newly added RAM, right?
My experience with added sodimm module on "newer" -221 is that the top edge of the module can foul against the ribs of the case panel. Either loosen the panel screws and/or shave the edges of the case ribs to ensure the sodimm module fits correctly.
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
User avatar
TMjack
TM Support
Posts: 185
Joined: 27 Oct 2020, 08:41

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by TMjack »

Based on the information from these two devices, their relevant configurations should theoretically be the same. You can try logging into the BIOS of the newer F5-221 device to check if the BIOS boot order is correct. Additionally, you could install the hard drive containing the TOS7 system from the older F5-221 device into the newer F5-221 device and see if it boots successfully.
To contact our team, please send email to following addresses, remember to replace (at) with @
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
User avatar
ChadH42
Posts: 27
Joined: 26 Nov 2024, 07:13
United States of America

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by ChadH42 »

TMjack wrote: 15 Feb 2026, 20:48 Based on the information from these two devices, their relevant configurations should theoretically be the same. You can try logging into the BIOS of the newer F5-221 device to check if the BIOS boot order is correct. Additionally, you could install the hard drive containing the TOS7 system from the older F5-221 device into the newer F5-221 device and see if it boots successfully.
I tried moving the hard drives from the older NAS, after it did upgrade to TOS7, into the new NAS and it would not boot. I tried updating the new NAS drives in the old NAS chassis and it would not boot. This is REALLY strange!
User avatar
ChadH42
Posts: 27
Joined: 26 Nov 2024, 07:13
United States of America

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by ChadH42 »

OrionXie wrote: 15 Feb 2026, 13:13
ChadH42 wrote: 15 Feb 2026, 02:05
Hello,

It seems your new F5-221 has about 2GB of newly added RAM, right? If so, you can try the following three methods:

1. First, upgrade to the latest TOS 7.0.0403 system version and see if it restores normal operation;

2. Try the following guide to set it up and see;

viewtopic.php?t=9413

3. If methods 1 and 2 still don't work, you can try removing the newly added 2GB of RAM and then try again.
Removed the 2GB RAM chip from new NAS and having the same problem. Moved 2GB RAM from new to old NAS and it installed TOS7 fine on old!! I am more confused!!
User avatar
TMjack
TM Support
Posts: 185
Joined: 27 Oct 2020, 08:41

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7  [SOLVED]

Post by TMjack »

Hello, I would like to inquire whether the newer F5-221 device is equipped with an HDMI interface? If it is, you could conveniently connect it to an HDMI monitor to view the specific output details. Additionally, you might also try creating a bootable USB drive to troubleshoot the issue. For detailed instructions, please refer to this link.
viewtopic.php?t=6433
To contact our team, please send email to following addresses, remember to replace (at) with @
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
User avatar
ChadH42
Posts: 27
Joined: 26 Nov 2024, 07:13
United States of America

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by ChadH42 »

TMjack wrote: 16 Feb 2026, 09:04 Hello, I would like to inquire whether the newer F5-221 device is equipped with an HDMI interface? If it is, you could conveniently connect it to an HDMI monitor to view the specific output details. Additionally, you might also try creating a bootable USB drive to troubleshoot the issue. For detailed instructions, please refer to this link.
viewtopic.php?t=6433
The HDMI idea has helped tremendously. I learn that in the re-boot after installing TOS7 the BIOS returns to "boot from INIT" state It is "boot from RAID" state on the working NAS. After checking the Boot Sequence in the BIOS settings, it lists 3 Sata drives as boot devices. None of them are the drives that TOS7 was installed on. I changed the boot order during the re-boot and TOS7 started!!
User avatar
ChadH42
Posts: 27
Joined: 26 Nov 2024, 07:13
United States of America

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by ChadH42 »

ChadH42 wrote: 17 Feb 2026, 01:45
TMjack wrote: 16 Feb 2026, 09:04 Hello, I would like to inquire whether the newer F5-221 device is equipped with an HDMI interface? If it is, you could conveniently connect it to an HDMI monitor to view the specific output details. Additionally, you might also try creating a bootable USB drive to troubleshoot the issue. For detailed instructions, please refer to this link.
viewtopic.php?t=6433
The HDMI idea has helped tremendously. I learn that in the re-boot after installing TOS7 the BIOS returns to "boot from INIT" state It is "boot from RAID" state on the working NAS. After checking the Boot Sequence in the BIOS settings, it lists 3 Sata drives as boot devices. None of them are the drives that TOS7 was installed on. I changed the boot order during the re-boot and TOS7 started!!
Update: The next and subsequent re-boots fail & keeps going back to "boot from INIT"
User avatar
crisisacting
Silver Member
Posts: 500
Joined: 20 Jan 2022, 16:42

Re: [Help] I have 2 F5-221 devices but only 1 will update to TOS7

Post by crisisacting »

ChadH42 wrote: 18 Feb 2026, 00:55
Have you updated the initboot USB drive as linked in TMJack's above post?
Post Reply

Return to “Hardware, Power and Accessories”