Zeridialous Posted March 27, 2016 Share Posted March 27, 2016 This BIOS has modded wifi whitelist? I replaced my wifi module by DELL 1510. Yes, the BIOS has the WLAN whitelist removed along with unlocking the Advanced section in setup Link to comment Share on other sites More sharing options...
XSmile2008 Posted March 27, 2016 Share Posted March 27, 2016 Can I flash BIOS without installing Windows? I don't want lost my system and data. UPDATE: I tried use Hiren's Boot CD to update BIOS, but got this message. I have 1.46 BIOS version. Link to comment Share on other sites More sharing options...
pax1234 Posted March 27, 2016 Share Posted March 27, 2016 I have 1.46 Bios too. I used hiren's Boot CD mini windows 7 to update without any problem. I ran "flash.bat" in admin mode. Bios flashed after first reboot. No video glitches after bios flashed. Link to comment Share on other sites More sharing options...
Tetonne Posted March 27, 2016 Share Posted March 27, 2016 my company's HD is bitlocked, (i switch internat hd with my personal HD to make it hack) my bios information say that bios upgrade is allowed. will the upgrading bios break the bitlock or ask for the key? if yes i can't upgrade bios if no then i can do it so please give me 100% sure information can someone tell how to easy upgrade the bios, i did it in the past with a compaq 311c put the firmware on a usb key , boot on it F12 it did it automatically end and reboot Link to comment Share on other sites More sharing options...
jus12 Posted March 27, 2016 Share Posted March 27, 2016 I had to give up for now. After bios update and HD3000 modification I still get glitches. This isn't good. I just installed fresh 10.11.3. It's so nice to be back in stable glitch free world. I need to wait till next release to see if anything will change. 2 Link to comment Share on other sites More sharing options...
XSmile2008 Posted March 27, 2016 Share Posted March 27, 2016 Same story if i load from Hiren's boot DVD with Windows 7. If i execute WINUPTP.EXE, i got message that BIOS not need to upgrade. If i load flash.bat, console was opened, after some time it just closing. After reboot I still have same BIOS. Link to comment Share on other sites More sharing options...
plesho Posted March 28, 2016 Share Posted March 28, 2016 (edited) Quick report: I've just upgraded my Thinkpad (X220) with the latest 10.11.4 update and at least for now (like 10-15 minutes browsing / youtube etc.) it seems that my machine is not affected with these glithes you are discussing. The bios version, if that matters, is 1.39 modded (whitelist removal). Although there is newer version - I found 1.40 modded and there is even newer 1.42 on the lenovo site, I've decided to go for the update and see how it goes and then update if needed. If I observe any strange behaviour I'll report back, but for now maybe for X220 users 10.11.4 is good to go. EDIT: Today, after maybe a total of 10 hours usage I've got the first complete system freeze. It seems that in the end I'll need to update the bios and see if this persists. Beside that freeze, I still haven't seen any glitches as the ones discussed above. EDIT2: Here comes the artefacts Edited March 29, 2016 by plesho 1 Link to comment Share on other sites More sharing options...
goodguess Posted March 30, 2016 Share Posted March 30, 2016 Just to update, I´m still on 10.11.4 and did not see the dreadful grey squares for some time now. I did install the 10.11.4 combo update over the automatically updated 10.11.4 Whitelist was removed some time ago (from Windows) for my DW 1510. BIOS is 1.46. Screen res. 1600x900. BUT the graphics errors do come back for a short while randomly. What triggers them remains a mystery. It seems to help here, not to power off the T420 (once everything is working) and to let it sleep rather. Link to comment Share on other sites More sharing options...
roki303 Posted March 30, 2016 Share Posted March 30, 2016 Are the glitches that are being reported in 10.11.4 are seen with 1600x900 or 1366x768 or both? Link to comment Share on other sites More sharing options...
pax1234 Posted March 30, 2016 Share Posted March 30, 2016 Mine is 1366x768. I updated to the latest Bios, played with advanced graphic settings, still getting video glitches. The new Bios improved but still getting glitches. I have since restored my SSD back to 10.10.5. 1 Link to comment Share on other sites More sharing options...
Zeridialous Posted March 30, 2016 Share Posted March 30, 2016 I have been experiencing glitches and total hard lock ups of the system to the point that I've almost given up on this entirely... very frustrating 1 Link to comment Share on other sites More sharing options...
jus12 Posted March 31, 2016 Share Posted March 31, 2016 I'm curious if this happens only to all El Capitan Systems that has been in the past updated from Yosemite? Or does it happen also on newly installed El Capitan Systems? My System that had the issue, was upgraded in the past from Yosemite, then updated regularly as update became available. Link to comment Share on other sites More sharing options...
pax1234 Posted March 31, 2016 Share Posted March 31, 2016 I did a clean install 10.11.0, then combo updated to 10.11.3. No video problems. I updated to 10.11.4 when available, then this video problem started happening as soon as I restarted the computer after the new update finished installing. I don't have a backup of 10.11.3, so I just restored back to 10.10.5, no problem with this version at all. Link to comment Share on other sites More sharing options...
adaml75 Posted March 31, 2016 Share Posted March 31, 2016 Hi, I had no problems with graphics after update (I updated from 10.11.0 to 10.11.4 via combo updater). But I had a problem with sound. The AppleHda wrapper didn't work for me - had no audio output to select and grey sound icon. I had to use VooodooHDA, which works, but with limitations (it doesn't recognize when you plug in headphones). The machine is plain T420 with Intel HD3000, 4GB RAM and Ericsson broadband modem (which actually works, I even managed to modify crappy Apple WWAN interface to recognize it). Overall great work, thanks to tluck I have much better machine than original macbook (more ports, two hard drives etc) and very, very stable. Link to comment Share on other sites More sharing options...
tluck Posted March 31, 2016 Share Posted March 31, 2016 (edited) @adaml75 - there is a newer AppleHDA_20672.kext that works with 10.11.4 if you are interested. i didn't have any glitches until 10.11.4 either. 10.11.3 seems ok. for sure Yosemite was rock solid the whole time. i am living with the glitches for now. a few lines or black splotches every now and then. so i got sick of these blotches and took anther attempt at fixing. Using a brute force method installed 10.11.3 and then I copied/reverted a bunch of kexts: *HD3000* *SNB* AppleGraphics* and IOGraphics* kexts and so far - no glitches. i will update you after i see if it really works and what really made the difference. -- recommendation - remove/disable /S/L/E/AppleGraphicsPowerManagement.kext Edited April 6, 2016 by tluck 1 Link to comment Share on other sites More sharing options...
emet Posted April 1, 2016 Share Posted April 1, 2016 I followed your guide almost to a T and have a great install on my T420 I only had a macbook with snow leopard so I had to find a way around "createinstallmedia" but that was not too hard. Then the install failed after about a minute until I found a video that instructed me to put some files on the usb drive. There is a video on youtube ( ) that tells how to fix it. After that i have not had much problem.All I need now is a way to have wireless. Is there a solution? A wireless card that Lenovo will accept? Or a workaround? Link to comment Share on other sites More sharing options...
tluck Posted April 1, 2016 Share Posted April 1, 2016 @emet - welcome to the club! wifi- search this thread for "atheros" and you will see discussions on wifi solutions - these 2 are fairly popular. stay on bios v1.46 and then there is a link to a modded bios - - that is required to let these chips work. Atheros AR5BHB92- dual-band: 2.4GHz + 5GHz. МасOS up to 150 Mbps on 2.4GHz and up to 300 Mbps on 5GHz, Windows up to 300 Mbps on both bands.Broadcom BCM94322HM8L- dual-band: 2.4GHz + 5GHz. МасOS up to 150 Mbps on 2.4GHz and up to 300 Mbps on 5GHz, Windows up to 300 Mbps on both bands. Link to comment Share on other sites More sharing options...
Zeridialous Posted April 1, 2016 Share Posted April 1, 2016 @tluck I'm curious, why is it that OS X can only pull 150 Mbps down on 2.4 GHz but Windows can do 300 Mbps ? Link to comment Share on other sites More sharing options...
tluck Posted April 1, 2016 Share Posted April 1, 2016 @Zeridialous - i dunno? must be a driver thing? with my atheros on dual band wifi i only get tx=130 on 2.4 Ghz, but tx=300 on 5 Ghz update on 10.11.4 glitches: 1) if i rollback the just the AppleGraphicsPowerManagement.kext to 10.11.3 - get pretty decent results - just a odd black line every now and then. 2) if i rollback more kexts: AppleIntelHD3000* and AppleIntelSNB* and AGPM - seems to do even better - just started testing this though. - glitches again. 2 Link to comment Share on other sites More sharing options...
XSmile2008 Posted April 1, 2016 Share Posted April 1, 2016 Finally I update my BIOS yesterday to 2170 version. For two day I does't have any glitches, except one or two very small, but I have some glitches before I update to 10.11.4. And new BIOS provide native resolution on loading screen and smoother screen wakeup. UPDATE: after short time i write it I take first system freeze. So BIOS update don't solve this problem, but make system "workable". Link to comment Share on other sites More sharing options...
Tetonne Posted April 2, 2016 Share Posted April 2, 2016 well anyone on 10.11.4 can test this out if you would like. attached are 2 kexts that have made 10.11.4 usable without freeze or hardly any glitches for me (very very rare in last 2 days). install these kexts /Library/Extensions like this: sudo cp ~/Downloads/El_Capitan_HD3000_Fix/* /Library/Extensions sudo chown -R 0:0 /Library/Extensions/Apple* sudo touch /System/Library/Extensions then reboot. kexts installed as adviced. Update report 3 (04/04/2016): no problem @boot, after few days ( : and massive tests (on several web site, with launching many apps together) few and rare lines, glitches with some site (flash part), seems better than it was I would advice people (in the how to) to stay on 10.11.3 for the moment. Thanks a lot tluck for the time you'e giving to make our T420 perfect and up up to date 1 Link to comment Share on other sites More sharing options...
vusun123 Posted April 3, 2016 Share Posted April 3, 2016 Guys, I finally jumped onto the T420 bandwagon. This time I got myself a T420s, made a DSDT for myself, the only issue remain is these two: + Brightness FN keys not working + Shutdown becomes restart Can someone post a DSDt patch to solve these two issues for me ? Thanks in advanced Link to comment Share on other sites More sharing options...
trifero Posted April 3, 2016 Share Posted April 3, 2016 Hi, I had no problems with graphics after update (I updated from 10.11.0 to 10.11.4 via combo updater). But I had a problem with sound. The AppleHda wrapper didn't work for me - had no audio output to select and grey sound icon. I had to use VooodooHDA, which works, but with limitations (it doesn't recognize when you plug in headphones). The machine is plain T420 with Intel HD3000, 4GB RAM and Ericsson broadband modem (which actually works, I even managed to modify crappy Apple WWAN interface to recognize it). Overall great work, thanks to tluck I have much better machine than original macbook (more ports, two hard drives etc) and very, very stable. Two or three times the same sound issue happened to me. Solved it running Kext Utility, cause i did´t like at all what VoodooHDA does. Link to comment Share on other sites More sharing options...
tluck Posted April 3, 2016 Share Posted April 3, 2016 vusun123 - welcome. the T420s DSDT in the zip may not have all the same patches in the T420 DSDT. i just posted the version Pokenguyen provided awhile back. i did make some changes for 10.11 but not having a T420s i cant test. Should be easy fix to the brightness and shutdown if you add copy the PNLF, and _WAK devices from the T420 into the T420s - i am testing the Yosemite 10.10.5 AppleGraphicPowerManagement.kext to see if that behaves better for the 10.11.4 glitches. the crazy thing is my son's T420 does not get a single glitch. so i presume others out there are lucky as well. Link to comment Share on other sites More sharing options...
trifero Posted April 3, 2016 Share Posted April 3, 2016 vusun123 - welcome. the T420s DSDT in the zip may not have all the same patches in the T420 DSDT. i just posted the version Pokenguyen provided awhile back. i did make some changes for 10.11 but not having a T420s i cant test. Should be easy fix to the brightness and shutdown if you add copy the PNLF, and _WAK devices from the T420 into the T420s - i am testing the Yosemite 10.10.5 AppleGraphicPowerManagement.kext to see if that behaves better for the 10.11.4 glitches. the crazy thing is my son's T420 does not get a single glitch. so i presume others out there are lucky as well. That´s so odd.. Maybe try a cloned HD from your son´s T420 in your system? Link to comment Share on other sites More sharing options...
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