I don't know if this is coincidental but I'm experiencing increased cooling fan noise since I updated the BIOS. I also have issue with viewing content of My Computer. For example, it does not show C:\ drive, as well as my network shared drives.
I just spoke with Dell Support. They indicated that the BitLocker issue is known and they are working on a new BIOS (I don't know why they are leaving the faulty BIOS live on their site - BIOS 1.15.4). Their solution was to A) Wait for the new BIOS B) Roll back to a December BIOS
This appears to be the same issue I had with the 7370. They released a new BIOS to fix the BIOS that broke the TPM/Bitlocker stuff. I would ask if it is the same thing I saw. The newest BIOS corrected the problem.
UPDATE: Worked with Dell Support yesterday. They acknowledged there is a problem with E7270/7470 BIOS Release 1.15.4
They have advised that a new BIOS should be released before the end of May (fingers crossed). The workaround at this point is to either decrypt the drive OR downgrade the BIOS (I do not recommend this).
I thought about how the TPM works with bitlocker and the BIOS being changed. My process when we get these laptops is upgrade the bios and all drivers from the dell website. After doing so, i change TPM version from 2.0 to 1.2. Then i enable bitlocker. Since this was already in place on the laptop, i thought maybe the TPM downgrade needs to be re-applied because it associates with the BIOS version. Tested and does not work. Since you are using a different model than I, I am unsure why it worked for you and not me. I noticed that when i downgraded to BIOS 1.13.4, the TPM had to be turned on. When i try to do this, the computer throws an error 0x80290300.
I am having a different (but possibly related) issue with this BIOS version. After applying this update, I cannot resume from standby. It will come up with a Critical_Process_Died BSOD. It does not even create a dump to do any real troubleshooting. Thankfully for me, I was able to roll back the BIOS, and have my problem resolved (for now). However, the ME Firmware EndUpdate part of the BIOS rollback fails with an error code (0x00002236), which may explain why rolling back didn't fix the Bitlocker issue for y'all.
At any rate, I am probably going to try reflashing this again tomorrow when I have time, and then contact Dell support if the issue persists. This BIOS update clearly has issues.
Same problem here (win 10 TPM 2.0) once I updated my BIOS to the latest version my e7470 does not go into sleep mode instead I'm having blue screen (not even error number) and problems to switch the laptop on.
I had both of my laptops finally serviced today by a dell technician. He replaced both the motherboards in my E7470's and i was able to activate bitlocker on one of them (the one with BIOS 1.13.4 installed). I purposely had one running BIOS 1.13.4 and the other running 1.15.4. The one laptop running 1.15.4 showed the same error with the BIOS is incorrect, contact your manufacture. I then tried to downgrade from 1.15.4 to 1.13.4 and once again the bitlocker crashes when i try to enable TPM since the firmware downgrade disables tpm to update the firmware
A BIOS update to 1.15.4 is still needed to fix any laptop since you would need to downgrade to 1.13.4, have a dell tech come out and replace the motherboard with 1.13.4 installed for bitlocker to work.
BarnYardHouse
6 Posts
0
May 23rd, 2017 13:00
I don't know if this is coincidental but I'm experiencing increased cooling fan noise since I updated the BIOS. I also have issue with viewing content of My Computer. For example, it does not show C:\ drive, as well as my network shared drives.
Are you guys experiencing the same also?
Cali Duck
1 Rookie
•
22 Posts
0
May 23rd, 2017 16:00
I just spoke with Dell Support. They indicated that the BitLocker issue is known and they are working on a new BIOS (I don't know why they are leaving the faulty BIOS live on their site - BIOS 1.15.4). Their solution was to A) Wait for the new BIOS B) Roll back to a December BIOS
davidhalperin
1 Rookie
•
16 Posts
1
May 23rd, 2017 16:00
This appears to be the same issue I had with the 7370. They released a new BIOS to fix the BIOS that broke the TPM/Bitlocker stuff. I would ask if it is the same thing I saw. The newest BIOS corrected the problem.
Cali Duck
1 Rookie
•
22 Posts
0
May 24th, 2017 10:00
UPDATE: Worked with Dell Support yesterday. They acknowledged there is a problem with E7270/7470 BIOS Release 1.15.4
They have advised that a new BIOS should be released before the end of May (fingers crossed). The workaround at this point is to either decrypt the drive OR downgrade the BIOS (I do not recommend this).
fusioncha0s
9 Posts
0
May 24th, 2017 10:00
I thought about how the TPM works with bitlocker and the BIOS being changed. My process when we get these laptops is upgrade the bios and all drivers from the dell website. After doing so, i change TPM version from 2.0 to 1.2. Then i enable bitlocker. Since this was already in place on the laptop, i thought maybe the TPM downgrade needs to be re-applied because it associates with the BIOS version. Tested and does not work. Since you are using a different model than I, I am unsure why it worked for you and not me. I noticed that when i downgraded to BIOS 1.13.4, the TPM had to be turned on. When i try to do this, the computer throws an error 0x80290300.
fusioncha0s
9 Posts
0
May 24th, 2017 11:00
I just got off the phone with dell support and they think a motherboard replacement is what is needed. Will update early next week.
BarnYardHouse
6 Posts
0
May 24th, 2017 15:00
Has the roll back to December BIOS ever worked for you guys? It didn't work for me. This condition is still occurring.
fusioncha0s
9 Posts
0
May 24th, 2017 15:00
I went back to BIOS version 1.12.3 (December 23rd) and it still did not work. I understand there where 2 bios versions in this month as well.
beefjerky
5 Posts
0
May 24th, 2017 21:00
I am having a different (but possibly related) issue with this BIOS version. After applying this update, I cannot resume from standby. It will come up with a Critical_Process_Died BSOD. It does not even create a dump to do any real troubleshooting. Thankfully for me, I was able to roll back the BIOS, and have my problem resolved (for now). However, the ME Firmware EndUpdate part of the BIOS rollback fails with an error code (0x00002236), which may explain why rolling back didn't fix the Bitlocker issue for y'all.
At any rate, I am probably going to try reflashing this again tomorrow when I have time, and then contact Dell support if the issue persists. This BIOS update clearly has issues.
Jar0s
2 Posts
0
May 25th, 2017 04:00
Same problem here (win 10 TPM 2.0) once I updated my BIOS to the latest version my e7470 does not go into sleep mode instead I'm having blue screen (not even error number) and problems to switch the laptop on.
MarPor
5 Posts
0
May 26th, 2017 08:00
@DELL-Chris M
Any news please?
MarPor
5 Posts
0
May 26th, 2017 08:00
No, no such issue. But please don't change the subject. We need to stay focused on and to resolve the BitLocker issue here.
DELL, any feedback on the BitLocker issue?
fusioncha0s
9 Posts
0
May 26th, 2017 13:00
I had both of my laptops finally serviced today by a dell technician. He replaced both the motherboards in my E7470's and i was able to activate bitlocker on one of them (the one with BIOS 1.13.4 installed). I purposely had one running BIOS 1.13.4 and the other running 1.15.4. The one laptop running 1.15.4 showed the same error with the BIOS is incorrect, contact your manufacture. I then tried to downgrade from 1.15.4 to 1.13.4 and once again the bitlocker crashes when i try to enable TPM since the firmware downgrade disables tpm to update the firmware
A BIOS update to 1.15.4 is still needed to fix any laptop since you would need to downgrade to 1.13.4, have a dell tech come out and replace the motherboard with 1.13.4 installed for bitlocker to work.
farmer22
2 Posts
0
May 26th, 2017 13:00
We rolled back to bios version 1.11.3 and are having success. No more bitlocker prompt at boot.
farmer22
2 Posts
1
May 26th, 2017 13:00
We reverted to bios 1.11.3 with success - no more bitlocker prompt at boot.