[HTC One S] luccos:
I have done several times this recommended sequence by you, and now rebuilt again, but the result does not change, does not go into recovery / stock / custom.

A few days ago I tried:

fastboot boot twrp-OpenRecovery-2.3.1.0-ville.img, after several attempts, I saw that the recovery TRW fails to boot after exactly 15/16 MINUTES (same for ver 2.2), then everything seems to work but very very slow , from there I tried to re-install a custom rom the viper 1.0 (and because this already copied to the SDcard), after doing a full wipe (about 8min), a few hours after the installation is finished, I rebooted .. and .. surprise I rebooted the phone is always with the stock rom 4.31. Then I tried to copy a rom zip on Sd (the utb) and after several attempts I succeeded, and after "install utb.zip" I waited a good 13 hours for the installation to finish and restart this time, I found myself with the old stock Rom. is incredible.

as regards the fact that you think is not mounted the Sd is plausible ..... but here it does not seem that it is mounted? Otherwise, give me the right commands with adb. Thanks

C:\Windows\system32>adb shell
adb server is out of date. killing...
* daemon started successfully *
root@android:/ # ls -l /sdcard/
ls -l /sdcard/
d---rwxr-x system sdcard_rw 2012-09-06 16:59 7digital
d---rwxr-x system sdcard_rw 2012-08-31 12:17 Android
d---rwxr-x system sdcard_rw 2012-09-01 12:25 Aura
----rwxr-x system sdcard_rw 684154 2012-09-08 15:33 CWM-SuperSU-v0.96.zip
d---rwxr-x system sdcard_rw 2012-09-13 17:33 CallLogBackupRestore
d---rwxr-x system sdcard_rw 2012-09-08 09:49 CamScanner
d---rwxr-x system sdcard_rw 2012-09-13 17:35 Camera360
d---rwxr-x system sdcard_rw 2012-09-13 18:35 Download
d---rwxr-x system sdcard_rw 2012-09-04 06:46 Download 16
d---rwxr-x system sdcard_rw 2012-09-08 09:49 Intsig
d---rwxr-x system sdcard_rw 2012-08-31 12:16 LOST.DIR
d---rwxr-x system sdcard_rw 2012-09-11 12:17 LazyList
d---rwxr-x system sdcard_rw 2012-09-13 05:39 LuckyPatcher
d---rwxr-x system sdcard_rw 2012-09-05 18:04 MIUI
d---rwxr-x system sdcard_rw 2012-09-11 06:04 MP3Search
d---rwxr-x system sdcard_rw 2012-09-11 06:10 Mikulu
d---rwxr-x system sdcard_rw 2012-09-11 12:19 MxBrowser
d---rwxr-x system sdcard_rw 2012-09-01 04:51 My Documents
d---rwxr-x system sdcard_rw 2012-09-01 13:28 MyTracks
d---rwxr-x system sdcard_rw 2012-08-31 12:17 Notifications
d---rwxr-x system sdcard_rw 2012-09-04 06:49 TitaniumBackup
----rwxr-x system sdcard_rw 591654005 2012-08-31 10:38 ViperOneS_v1.0.0.zip
d---rwxr-x system sdcard_rw 2012-09-02 04:00 WhatsApp
d---rwxr-x system sdcard_rw 2012-09-08 16:03 blackmart
----rwxr-x system sdcard_rw 3684 2012-09-13 17:33 c360_debug.txt
d---rwxr-x system sdcard_rw 2012-09-07 12:47 data
d---rwxr-x system sdcard_rw 2012-09-16 13:58 dcim
----rwxr-x system sdcard_rw 232 2012-09-15 17:42 device.nng
d---rwxr-x system sdcard_rw 2012-09-13 18:35 gmutils
d---rwxr-x system sdcard_rw 2012-09-15 06:18 installer
d---rwxr-x system sdcard_rw 2012-09-11 05:54 mp3_downloads
d---rwxr-x system sdcard_rw 2012-09-13 18:56 mp3download
d---rwxr-x system sdcard_rw 2012-09-11 06:39 musicDownload
d---rwxr-x system sdcard_rw 2012-09-11 06:10 myalbum
d---rwxr-x system sdcard_rw 2012-09-11 06:16 myrecord
d---rwxr-x system sdcard_rw 2012-09-13 05:34 tapatalkpro_download
d---rwxr-x system sdcard_rw 2012-09-13 18:16 viber
root@android:/ #