[Supermarios]

Originally Posted by Muhammadsaqib11

with 9.3 ios 13e237 (3utools) pro flash

Below devices support to professional flash: 
iPod Touch2, iPod Touch3, iPod Touch4, iPod Touch5, iPod Touch6
iPad1,iPad2,iPad3,iPad4,iPad Air,iPad Air2,iPad mini/2/3/4,iPad Pro
iPhone3G,iPhone3GS,iPhone4,iPhone4s,iPhone5,iPhone5c,iPhone5s,iPhone6,iPhone6 Plus
---------------------------------------------------------------------------------------------------------------------
Steps to enter DFU mode:
1. Keep device in normal mode or recovery mode, plug USB cable (please don't use USB extension cable)
2. Hold HOME button, then hold power button until screen is blank
3. Release the POWER button after about 4 seconds, but keep holding the HOME button for about 10 seconds
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14:11:26   Friendly reminder: 
14:11:26   Please make sure device turned off 'Find My iPhone'
14:11:26   The device will can not activated without Apple ID after flash, in case device turned on 'Find My iPhone'
14:11:26   Method to check: Settings -> iCloud -> Find My iPhone
---------------------------------------------------------------------------------------------------------------------
14:11:26   Please connect USB cable to apple mobile device, make sure you are in DFU mode14:12:29   Retrieving information from apple mobile device14:12:29   SRTG:[iBoot-838.3]
14:12:29   Device ECID: 00000210E010834C
14:12:29   Product Type: iPhone4,1
14:12:29   Product Name: iPhone4s
14:12:29   MAIN CPU ID : 8940
14:12:29   Verifying firmware file14:12:48   MD5 value of firmware : 074670FF4FD2527678561E0BBE94A3DD
14:12:48   Filename of firmware : iPhone4,1_9.3_13E237_Restore.ipsw
14:12:48   MD5 value is different from official firmware, maybe firmware has damaged
14:12:48   Unzipping firmware file14:14:13   Apple server no longer supports the flash of this firmware version
14:14:13   Failed to flash
14:14:13   If the device doesn't exit current mode
14:14:13   Please hold the HOME and POWER buttons for about 10 seconds
14:14:13   Flash and jailbreak of apple device, please visit official website of 3uTools http://www.3u.com
14:14:13   Elapsed Time: 00:01:44
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with ios 9.3 13e233 (3utools) pro flash

Below devices support to professional flash: 
iPod Touch2, iPod Touch3, iPod Touch4, iPod Touch5, iPod Touch6
iPad1,iPad2,iPad3,iPad4,iPad Air,iPad Air2,iPad mini/2/3/4,iPad Pro
iPhone3G,iPhone3GS,iPhone4,iPhone4s,iPhone5,iPhone5c,iPhone5s,iPhone6,iPhone6 Plus
---------------------------------------------------------------------------------------------------------------------
Steps to enter DFU mode:
1. Keep device in normal mode or recovery mode, plug USB cable (please don't use USB extension cable)
2. Hold HOME button, then hold power button until screen is blank
3. Release the POWER button after about 4 seconds, but keep holding the HOME button for about 10 seconds
---------------------------------------------------------------------------------------------------------------------
14:15:39   Friendly reminder: 
14:15:39   Please make sure device turned off 'Find My iPhone'
14:15:39   The device will can not activated without Apple ID after flash, in case device turned on 'Find My iPhone'
14:15:39   Method to check: Settings -> iCloud -> Find My iPhone
---------------------------------------------------------------------------------------------------------------------
14:15:39   Please connect USB cable to apple mobile device, make sure you are in DFU mode14:16:18   Retrieving information from apple mobile device14:16:18   SRTG:[iBoot-838.3]
14:16:18   Device ECID: 00000210E010834C
14:16:18   Product Type: iPhone4,1
14:16:18   Product Name: iPhone4s
14:16:18   MAIN CPU ID : 8940
14:16:18   Verifying firmware file14:16:27   MD5 value of firmware : 885599C9C52DB8CA2BE5F5F7F59CFFDA
14:16:27   Filename of firmware : iPhone4,1_9.3_13E233_Restore.ipsw
14:16:27   MD5 value is different from official firmware, maybe firmware has damaged
14:16:27   Unzipping firmware file14:17:44   Apple server no longer supports the flash of this firmware version
14:17:44   Failed to flash
14:17:46   If the device doesn't exit current mode
14:17:46   Please hold the HOME and POWER buttons for about 10 seconds
14:17:46   Flash and jailbreak of apple device, please visit official website of 3uTools http://www.3u.com
14:17:47   Elapsed Time: 00:01:29

with easy flash


and itunes still is giving error 3194 same as before

Hi sir. The version below v1.07 can't flash new 9.3 using Pro Flash. 3uTools V1.08 can support it using Pro Flash. Did you flash new 9.3(13E237) using Easy Flash?