Hi, I try to recovery bios, but no use, please help! Samsung RV509, Phoenix Secure Core / ACPI 2.0. File BIOS.WPH sized 2.03M (Phoenix BIOS - New Style). I tried 5 methods in the first post, use Fn/Win + B/S/R/W/P/F/ESC, Home/End, 4 arrow, Jumper CRY (beside RTC), removed HDD, ODD. Any suggestion? Thanks ! Success Recovery Here is my case: My Laptop produced in 4/2011, Phoenix SecureCore(tm) (OK with PHLASH 1.6.7 & 220.127.116.11 & 18.104.22.168, the others maybe). - Crewdriver. - USB Kington 101G2 4GB -> HP USB Format (Default FAT32, Don't check Quick Format) -> Just make sure USB clean & Clear. - WINCRISIS v4 run on XP (Thanks to Acerfans.ru). Note: v2 for FDD (XP); v3,4 for USB Flash. v3 XP, v4 -> XP, Vista, Win7. I think, v4 have new minidos/phoenix, support PHLASH16 new version (my guess, PHLASH16 v22.214.171.124 included in wincrisis v4). So go for v4. - Original ROM file: mine is 07PBB.ROM (2.03MB) -> Rename to BIOS.WPH -> copy to wincrisis v4 folder. - Run as admin (win v6), or just run wincrisis, choose my USB, don't select compress bin - this option is for FDD 1.44M and ROM size ~2M - On 'DEAD' laptop: + Turn off, unplug power cable, remove battery, push power button (for discharge all power), remove all external (USB devices, cable, etc). + Open case, remove HDD, ODD, RAM (If there more than 1 RAM) - Plug USB prepared in. Hold Win + B, Plug power in, count to 20, push power button, count to 30 and release. - Wait about ~5min, USB stop flash, wait more 5min, and 5min, it still run. - Push power button to turn off. Unplug power cable. Wait about 1min (push power button, fast discharge). This step must done. - Plug power, push power button, if every thing ok, you will see message no OS (I removed HDD ) Notes: - Most failed recovery cases is 'wrong' version PHLASH16, (Wincrisis 4 + PHLASH16 v126.96.36.199 (not 188.8.131.52 - have problems with old bios type) or 184.108.40.206 is the best (mostly)). My BIOS ok from 1.6.2 -> 220.127.116.11. MUST use the original BIOS. - Laptop lenovo/ibm, use e_bcpvpw.exe to extract *.FL1 to BIOS.WPH (I tried one on my old old laptop, search on this forum or google for e_bcpvpw). There are more than one file *.FL1, just try it all or search google for the right one. - Bootblock must not corrupt (so should update original bios in window, if you try to mod your own bios, and flash your mod bios in dos, skip bootblock, don't use /BBL). - BIOS must in state CRISIS (corrupted, no HDD, ODD) + hardware signal or use key combination. Phoenix BIOS key combination in most cases is Fn+ESC, but mine is Win+B (maybe Fn+B, not sure after 3 night, try to recovery bios). I tried RTC, CRY jumper before. I tried with USB PQI 512M, with wincrisis v3 + PHLASH16 v18.104.22.168, but no use (don't know because USB or wincrisis). So feel free to try all. - Make sure your USB ports is OK before, all internal cable is OK, in my case one usb port is dead (after plug, and unplug in 2 night ), so try another ports. - I failed with USB PQI 512M but ok with KT 4G (I guessed because I 'modded' chip on that USB once). So buy a new USB (KT is good & cheap, 4G~$5, 2G~$3). - Make sure your laptop is passes warranty date. If not just send to warranty for good. Original files from Acerfans_ru, mirror by me: Wincrisis v2,3,4: www_box_com/s/vrdfcs8agqdymenz2dj1 PHLASH16 collection: www_box_com/s/rih0bhyvdc19xih2w0l8 Read mores and original links at: (Free to use google translate). forums_mydigitallife_info/threads/29533-solved-samsung-rv409-crisis-bios-recovery acerfans_ru/faq/page,1,2,1400-bios-voprosy-po-proshivke-i-vosstanovleniyu-bios.html Thanks to all, thanks to google. PS. - Replace _ with , in link (I can't post link, not enough post?) - If fails all, just bring it to reprogram bios, about ~ $5-10, and 1hrs (max) if they have equipment and rom file, at big shop, this is not problem. My bios is new type, so only option is replace it, really expensive. But time is money, so don't waste. Bring it to shop, ask for replace laptop, and remove your hdd and use hddbox to continue your work, if time need to fix is too long (at my place, this is normal). @mod or petar: my notes maybe useful and if you also think that, please add a links to the first posts.