[Samsung Galaxy S5 Neo ROMs, Kernels, Recoveries, &] :
Yes strange though is that happened to me too, however I don't know why I could wipe data before must be a bug where frp lock was re activated.

Another thing using *#0808# we can access change usb mode from ap > cp

*#9090# is for diag

As seen in picture, this been kept hidden since Samsung disabled it on s4 with changing the code.

Service mode FB code

<action*android:name="android.provider.Telephony.SECRET_CODE"/>

<data*android:host="22558463"*android:scheme="android_secret_code"/>

<data*android:host="RTN"*android:scheme="android_secret_code"/>

<data*android:host="3214789650"*android:scheme="android_secret_code"/>

<data*android:host="9900"*android:scheme="android_secret_code"/>

<data*android:host="0514"*android:scheme="android_secret_code"/>

<data*android:host="66336"*android:scheme="android_secret_code"/>

<data*android:host="66336324"*android:scheme="android_secret_code"/>

<data*android:host="99007788"*android:scheme="android_secret_code"/>

<data*android:host="638732"*android:scheme="android_secret_code"/>

<data*android:host="7284"*android:scheme="android_secret_code"/>

<data*android:host="06"*android:scheme="android_secret_code"/>

<data*android:host="272886"*android:scheme="android_secret_code"/>

<data*android:host="773738"*android:scheme="android_secret_code"/>

<data*android:host="0808"*android:scheme="android_secret_code"/>

Service Mode ril codes

<data*android:host="197328640"*android:scheme="android_secret_code"/>

<data*android:host="27663368378"*android:scheme="android_secret_code"/>

<data*android:host="276633683782"*android:scheme="android_secret_code"/>

<data*android:host="2684"*android:scheme="android_secret_code"/>

<data*android:host="0011"*android:scheme="android_secret_code"/>

<data*android:host="00112"*android:scheme="android_secret_code"/>

<data*android:host="123456"*android:scheme="android_secret_code"/>

<data*android:host="22553767"*android:scheme="android_secret_code"/>

<data*android:host="32489"*android:scheme="android_secret_code"/>

<data*android:host="2580"*android:scheme="android_secret_code"/>

<data*android:host="9090"*android:scheme="android_secret_code"/>

<data*android:host="4238378"*android:scheme="android_secret_code"/>

<data*android:host="745"*android:scheme="android_secret_code"/>

<data*android:host="66336"*android:scheme="android_secret_code"/>

<data*android:host="746"*android:scheme="android_secret_code"/>

<data*android:host="2263"*android:scheme="android_secret_code"/>

<data*android:host="22632"*android:scheme="android_secret_code"/>

<data*android:host="1575"*android:scheme="android_secret_code"/>

<data*android:host="6984125*"*android:scheme="android_secret_code"/>

<data*android:host="2886"*android:scheme="android_secret_code"/>

<data*android:host="2767*2878"*android:scheme="android_secret_code"/>

<data*android:host="147852"*android:scheme="android_secret_code"/>

<data*android:host="5337632"*android:scheme="android_secret_code"/>

<data*android:host="369852"*android:scheme="android_secret_code"/>

<data*android:host="1478963"*android:scheme="android_secret_code"/>

<data*android:host="73876766"*android:scheme="android_secret_code"/>

<data*android:host="738767633"*android:scheme="android_secret_code"/>

<data*android:host="7387678378"*android:scheme="android_secret_code"/>

<data*android:host="7387677763"*android:scheme="android_secret_code"/>

<data*android:host="4387264636"*android:scheme="android_secret_code"/>

<data*android:host="03"*android:scheme="android_secret_code"/>

<data*android:host="TESTMODE"*android:scheme="android_secret_code"/>

<data*android:host="1111"*android:scheme="android_secret_code"/>

<data*android:host="2222"*android:scheme="android_secret_code"/>

<data*android:host="8888"*android:scheme="android_secret_code"/>

<data*android:host="301279"*android:scheme="android_secret_code"/>

<data*android:host="279301"*android:scheme="android_secret_code"/>

<data*android:host="3214789"*android:scheme="android_secret_code"/>

<data*android:host="827828868378"*android:scheme="android_secret_code"/>

<data*android:host="3698741"*android:scheme="android_secret_code"/>

<data*android:host="CP_RAMDUMP"*android:scheme="android_secret_code"/>

<data*android:host="58366"*android:scheme="android_secret_code"/>

<data*android:host="37375625"*android:scheme="android_secret_code"/>

<data*android:host="36764"*android:scheme="android_secret_code"/>

<data*android:host="758353266223"*android:scheme="android_secret_code"/>

<data*android:host="1234567890"*android:scheme="android_secret_code"/>

<data*android:host="119"*android:scheme="android_secret_code"/>

<data*android:host="33725327"*android:scheme="android_secret_code"/>