TWRP seems to be corrupt or not working for Infinix X5515F

I was trying to install TWRP recovery to my Infinix X5515F (Smart 2). I followed these steps: - enabled OEM unlock and USB debugging - connected to a computer - logged into adb and sent adb reboot bootloader - send fastboot erase recovery - flashed this file using fastboot flash recovery - tried to boot directly from the image using fastboot boot (after a while without any response, it performed a normal boot to the system, not to recovery) Then I tried to reboot to recovery by these methods: - pressing and holding the Volume Up and Power buttons until the Infinix boot logo appears (after releasing all the buttons it shut down without showing anything, booted again, and performed a normal boot) - send adb reboot recovery (it boots to system recovery, not to TWRP) What is the problem? Is this image corrupt or not right? If it is, can you provide any image for X5515F (not for X5515)?