I have re-imaged my BBB and made the correction to the typo in my overlay file. 
 However, it appears as if I am having the same issue.  When I install the 
overlay in the uEnv.txt file and reboot, I am never able to ssh back into the 
BBB.  

My file is below for your review.  I can't seem to find any problems with it, 
and seem to be stuck again.  Do you have any recommendations on how to proceed?

/dts-v1/;
/plugin/;

#include <dt-bindings/board/am335x-bbw-bbb-base.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>

/ {
        compatible = "ti,beaglebone", "ti,beaglebone-black", 
"ti,beaglebone-green";

        /* identification */
        part-number = "CLOCK";
        version = "00A0";

        exclusive-use =
                "P9.12", "P9.24", "P9.26", "uart1"; // gps and pps

        fragment@0 {
                target = <&ocp>;
                __overlay__ {
                        P9_12_pinmux { status = "disabled"; };
                        P9_24_pinmux { status = "disabled"; };
                        P9_26_pinmux { status = "disabled"; };
                };
        };

        fragment@1 {
                target = <&am33xx_pinmux>;
                __overlay__ {
                        bb_uart4_pins: pinmux_bb_uart1_pins {
                                pinctrl-single,pins = <
                                        BONE_P9_24 (PIN_OUTPUT | MUX_MODE6)
                                        BONE_P9_26 (PIN_INPUT | MUX_MODE6)
                                >;
                        };

                        bb_gps_pps_pins: pinmux_bb_gps_pps_pins {
                                pinctrl-single,pins = <
                                        BONE_P9_12 (PIN_INPUT_PULLDOWN | 
MUX_MODE7)
                                >;
                        };

                };
        };

        fragment@2 {
                target = <&uart1>;
                __overlay__ {
                        status = "okay";
                        pinctrl-names = "default";
                        pinctrl-0 = <&bb_uart1_pins>;
               };
        };

        fragment@3 {
                target-path = "/";
                __overlay__ {
                        gps_pps {
                                status = "okay";
                                compatible = "pps-gpio";
                                pinctrl-names = "default";
                                pinctrl-0 = <&bb_gps_pps_pins>;
                                gpios = <&gpio1 16 0>;
                        };
                };
        };

};


 ---- On Wed, 29 Aug 2018 21:11:29 -0500 Robert Nelson 
<[email protected]> wrote ---- 
 > 
 > 
 > On Wed, Aug 29, 2018, 9:05 PM Pablo Rodriguez <[email protected]> wrote:
 > Hi. Is posible to boot from an microsd and modify the uEnv  file on the emmc 
 > after mounting it?Sorry if i misunderstood the problem
 > Good point, yeah it is...
 > Regards,  
 >   -- 
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