I run out of ideas. If you have the patience, pls, read below and any usable suggestion would be appreciated.
It was indicated by Dell by that there was an urgent BIOS update for my Latitude 12 7275 2-in-1 machine on their support page. On 18 Feb 18, I downloaded & run the XPS_9250_Latitude_7275_1.1.34.exe. It all went well. Latitude started after BIOS update
I run Dell Command Update and attempted to installed all 6 urgent and recommended updates: (1) TN9X6: ASMedia USB Extended Host Controller Driver v. 188.8.131.52; (2) PDMY7: Intel HD 5000 6000 500 series Graphics Driver v. 184.108.40.20638; (3) TWP50: Realtek USB GBE Ethernet Controller Driver applicable for TB16/WD15/ Dock v. 2.43.2017.907; (4) MNK54: Intel 8260 7265 3165 7260 WiFi Driver v.20.10.0001.7478; (5) 19Y3F: Intel Management Engine Components Installer v. 220.127.116.114
The machine failed to restart after Command Update. It went down but did not come back on (waited 30+ minutes before pressing the on switch). It buzzed once then produced a pattern of flashes (8 times 2 short amber 1 longer white finishing with a longer amber). After the pattern stopped nothing happened. Tried 10-15 times it was the same.
Did some Dell searching and found the article “Dell PC does not turn on or boot into Windows” at https://www.dell.com/support/article/bs/en/bsdhs1/sln85632/dell-pc-does-not-turn-on-or-boot-into-win.... Symptoms indicated a POST failure (see table at the bottom of page: no POST). Followed, steps 1-5 five in article. In step 5 I got start into a screen saying something like unrecognised or invalid configuration giving three options: retry boot, run diagnostics, enter bios setup. Chose bios setup and restored defaults. After exit from bios setup machine did not start and got the same flashing pattern.
I found another Dell article “How to Use Forced ePSA to Recover from POST or Boot Failure” at https://www.dell.com/support/article/bs/en/bsdhs1/sln304045/how-to-use-forced-epsa-to-recover-from-p.... I followed its steps with three exceptions. (1) I unplugged the CMOS battery for 30 second. (2) I run the whole ePSA diagnostics (14 + 58 minutes) and (3) when ePSA diagnostics started it insisted on the battery so I plugged it in. All tests successful (no error at all).
It now started into the screen with the three 3 options as above. Again I reset BIOS to defaults. It now started back to Windows 10. In the BIOS logs for power log there is an entry “no State 5” for 18 February but not since then (see at https://msdn.microsoft.com/en-us/library/windows/desktop/aa373229(v=vs.85).aspx ). Now, I can “shut down” the machine and start it by pressing the power button. I cannot use “restart.”
If restart is used the machine shuts down but does not restart (i.e., still no power state 5). Produces the same flashing patter (2 x amber + white etc. as above) then nothing. Unlike before once flashing stops the machine starts normally with the power button.
I found the following article on Dell Community pages: “[Solved] Laptop won't shut down completely in Windows 10” at https://www.dell.com/community/Windows-10/Solved-Laptop-won-t-shutdown-completely-in-Windows-10/m-p/.... Accordingly, sleep and shutdown problems are due to v11xx, downgrade to Intel Management Engine Interface to v9.5. Had no uninstaller option for v11, so I downloaded its individual install package. On firs run, I tried repair that failed. On second run, I chose remove that was allegedly completed successfully. Trying to reinstall failed: “setup program ended prematurely because of the following error: This platform is not supported.”
I stated the machine, pressed F12 and Under OTER OPTIONS chose Intel (R) Management Engine BIOS Extension (MEBx). Got a message: “Note, some options have been removed as they are no longer valid” and the MEBx option disappeared from the screen?! However, next time the otion is there again and again disappears if selected.
In sum, the Dell bios update in conjunction with Dell’s intel management engine components installer (bios extensions installer) wrecked my bios. How can I revert to my nicely working system? I cannot downgrade the BIOS as it needs power state 5 and cannot reactivate the Intel management engine either.
hello to all I also have 7275 with the same problem after updating the BIOS 1.1.34
a nightmare . how can I release such an update ...
I also add that time synchronization does not work, you can not see in the boot
how to fix the situation now????
how to fix the situation now????
I posted because I noticed that sometimes these community pages are looked at by Dell technicians. They tend to give reasonably inteligent suggestions if they know what's going on (e.g., I was able to re-gain acces to the OS using their support articles).
A few weeks back, the automatic MS Windows 10 Creators Fall Update also wrecked my Latitude (softwarewise only). It took more than a week to fix it. I was able to reinstall my Dell Win 10 OS from scratch but that was not "supported by MS" any more. Their automatic feature upgrade rom RTM to 1709 failed repeatedly (after hours and hours of idiotic messages on the screen). BTW, unless you disable that option in the BIOS MS can also install certain UEFI firmware packages that migh also complicate things (i.e., descriptions tend to be obscure and one rarely know what was installed automatically)
Since the Win 10 failure I record and store everything. In the present case I have the Dell Command Update activity log, update history, etc. Microsoft was successfully sued many times for the consequences of its upgrade/update strategies (e.g., https://www.extremetech.com/computing/230794-woman-wins-10000-judgment-against-microsoft-for-forced-...).
One fix, is to
if it fails to give a software-based technical solution to reset my machine. I shall buy a new or second hand motherboard on eBay and sue them for atual costs; my time I will have spent to to fix the consequences of their faulty update; etc. Under Australian consumer law my rigths to recover such costs cannot be excluded. Don't know where you are but that is what I can suggest to you too.
BTW, I am learnig Linux for myself and my next tablet and computer for business are going to be Apple. That is another fix for the problem. LOL.
I had some time to play and I bought a motherboard again (US$300 on June 29 2018) into the wrecked Latitude 7275 (see my original post). Worked like a charm. Updated its windows automaticall w/o needing to reinstall. Still worked like a charm. Updated manually to latest bios and inter ME componets. Still, worked like a charm. Put Dell Command Update on autoupdate and left it. There were 2 recommended firmware updates (Inter thunderbolt and DW5811e) among the reccommended updates. It automatically restarted after updates and got stuck on the dell logo on restart. Got smart since last time and left it on for 48 hours before pressed the power button. On re-starting it buzzed and the screen remained blank completely. Any further attempt to restart failed since except: Unplugged & replugged the main and CMOS battery when it started with the usual "invalid configuration message." Running a diagnostics showed ALL Good including "boot partition," yet no booting from SDD or USB on restart. I am apparently not alone (see alayac on 12-12-17 at https://www.dell.com/community/Laptops-General/XPS-9550-Latest-Thunderbolt-firmware-upgrade-destroys... [bottom] and the responses to my original message in this thread).
Any ideas how to recover without buying another motherboard and never accept any updates from Dell Command Update? I do have another idea/suggestion that will eventuate but its futile to write down as dell deletes it anyway 😞 (see in my original message).
My Latitude 7275 got the exactly same issue after upgrading to BIOS 1.1.34 and IME 11.7. A more critical issue is that the CPU always throttled, maximum clock frequency is locked at 0.39GHz. Have you found any solution now?
After reading your thread, I tried to use INTEL-SA-00075 Detection and Mitigation Tool to check if it is the IME problem, and the results showed that ME version unavailable! You're right, the BIOS update together with IME interface program damaged the ME firmware in BIOS.
Dell has provided a way to downgrade BIOS, however even if I downgrade the BIOS to 1.1.27, the damaged ME firmware can not be restored, the rebooting and throttle problems still exist.
I am now trying to flash the Intel ME firmware manually, but I am not sure whether it will work. Can you dump a healthy BIOS image and check the ME firmware version? Because using a wrong ME firmware might brick the device permanently.
I arrived to the same conclusion as you. Dump my healthy firmware from the good mobo I bought (again) and reload it manually into the wrecked ones to salvage them (got two :-(). I haven't got time to go through all the info at the URL you sent. If you already figured out how to dump the necessary healthy frimware (parts), send me point-by-point instructions and happy to get the dump for you or whatever else you need. I have a 5175 as well that just got warranty seviced by Dell (charger and WWAN) and now it is completely dead. I am trying to sort the 7175 out before dealing with the wrecked 7275 mobo's.
I'm also having the same issue with my Dell Latitude 7275 after upgrading the BIOS and IME... I tried to do a recover of the BIOS by unplugging the tablet from power cable while the computer was off, held down the volume down button and plugged the power cable back in. Then I released the volume down button and got the option to recover the BIOS. But that did nothing for me, the tablet is still stuck in the Dell splash screen and sometimes just a blank screen. Very frustrating that I they would release a BIOS without testing it out first.
Looks like I finally got it revived... i have not tested the sleep or hibernate functions yet. I got a different computer and downloaded the old BIOS then changed the name and extension to BIOS_IMG and extension to .rcv on a 16GB USB flash drive which is formatted to FAT32. Plugged the drive into a USB-C to USB-A adapter, then to the tablet. Unplugged the tablet. Held down the Ctrl and Esc key, then plugged in the power. It didn't turn on by it self so while holding the two key with on hand I pressed and hold the power key till it vibrated then released the power key, but still kept the Ctrl and Esc key pressed down. By some magic luck the tablet booted up, so I quickly downloaded the old BIOS and installed it in Windows. Tablet restarted and flashed the BIOS and other items, and finally booted back into Windows... I was going to trey to a system restore to go back before I installed the Intel Dynamic Platform and Thermal Framework Driver, but it seems like System Restore was turned off and no restore point was created. oh well, but at least it is booted and running. Good luck to everyone who is going through this problem.
Great, thanks for the info. It did not work for me but it is probably because I put in an PCIe NVME M.2 SSD after it run out of warranty. Mine got stuck in "preparing to recover" after control escape and remained there forever. I'll find its original SATA SSD and try with that. It should have the original BIOS backup as well. The NVME has known issues in preboot and Dell published a workaround for windows installations that works/updates but that did not solve the BIOS recovery issue from SSD for me. My main problem with the first dead MOBO was that it did not restart unless I used hard shut down (see my initial post in February). Consequently, could not install/update anything that relied on power state S5 (related to programmatic restart for continuing installations like it happens during BIOS installations). BIOS and some update installation did not continue after a manual shut down and restart (i.e., 5-10 sec push on power button).The second MOBO did not start at all just stuck in preparing to recover. BTW, did you succeed to restore the ME BIOS extension as well, not just the BIOS itself? Let me know, please, if the sleep/hybernate/restart all work.